Quick Answer: The best synonyms for failed include unsuccessful, defeated, rejected, ineffective, collapsed, malfunctioned, botched, flopped, aborted, and fell short. Use unsuccessful for a general lack of success, defeated for losing a contest, and rejected for an application or proposal that was not accepted. Ineffective suits methods that produced no useful result. Malfunctioned describes equipment that stopped working, while botched describes work completed badly. Choose fell short when someone made progress but did not meet the required standard.
Pronunciation and Word Details
Word: Failed.
Pronunciation: /feɪld/
Part of Speech: Adjective and the past tense or past participle form of the verb fail.
Meaning: Failed describes something that did not succeed, did not meet a standard, was not accepted, or stopped working correctly.
US Pronunciation:
UK Pronunciation:
What Does “Failed” Mean?
Failed means that a person, plan, attempt, system, or process did not achieve the intended result. It is commonly used as the past tense of fail and as an adjective describing something unsuccessful.
A student may have failed an examination by not achieving the required score. A proposal may have failed because it did not receive enough support. A machine may have failed when it stopped operating.
The exact meaning depends on the sentence context.
Lack of Success: The campaign failed to reach its target.
Poor Academic Result: He failed the final examination.
Rejection: Her application failed to receive approval.
Mechanical Breakdown: The engine failed during the journey.
Unmet Responsibility: The manager failed to inform the team.
Declining Condition: His strength failed near the end of the race.
Meaning, Tone, and Context of “Failed”
Failed usually has a neutral but negative tone. It communicates that an expected result, standard, duty, or function was not achieved.
In academic contexts, failed often refers to not passing a test, course, or assessment. In professional writing, it may describe an unsuccessful project, strategy, policy, negotiation, or business.
In technical language, failed describes a machine, system, component, or process that stopped functioning. In formal reports, the word can identify a problem clearly, but writers should explain what failed and why.
Failed may sound emotionally strong when it describes a person rather than an action. Calling someone a failed person can sound harsh and unfair because it suggests a permanent identity. It is usually better to describe the specific attempt, task, or result that was unsuccessful.
When and How to Use “Failed”
For an Unsuccessful Attempt
Use failed when an attempt did not produce the desired result.
Example: The rescue attempt failed because of severe weather.
For an Examination or Course
Use failed when someone did not achieve the score required to pass.
Example: She failed the examination by only two marks.
For a Rejected Application
Use failed when a request, application, or proposal was not accepted.
Example: His application failed to meet the eligibility requirements.
For an Ineffective Plan
Use failed when a plan, strategy, or method did not solve the intended problem.
Example: The new strategy failed to improve customer satisfaction.
For Broken Equipment
Use failed when a machine, system, or component stopped working.
Example: The cooling system failed during the test.
For an Unmet Duty
Use failed when someone did not perform a required action.
Example: The supervisor failed to report the safety concern.
For a Lost Competition
Use failed when a person or team did not win or qualify.
Example: The team failed to reach the final round.
For a Declining Ability
Use failed when strength, memory, courage, or another ability became weaker.
Example: His voice failed before he completed the speech.
Best Synonyms for Failed
Unsuccessful: Not achieving the intended result.
Example: The first attempt was unsuccessful.
Defeated: Beaten in a contest, conflict, or competition.
Example: The defending team was defeated in the final.
Rejected: Refused, dismissed, or not accepted.
Example: Her proposal was rejected by the committee.
Ineffective: Not producing the desired result.
Example: The treatment proved ineffective.
Collapsed: Suddenly failed or fell apart.
Example: The agreement collapsed after several difficult meetings.
Malfunctioned: Failed to operate correctly.
Example: The alarm system malfunctioned during the test.
Botched: Completed badly because of mistakes or poor handling.
Example: The repair was botched by an inexperienced worker.
Flopped: Failed noticeably or attracted little interest.
Example: The event flopped because very few people attended.
Aborted: Stopped before completion because success was impossible or unsafe.
Example: The mission was aborted after a technical problem developed.
Fell Short: Did not meet an expected standard, amount, or goal.
Example: The final result fell short of expectations.
50 Synonyms for Failed with Short Meanings
- Unsuccessful: Not achieving the intended result.
- Defeated: Beaten in a competition or conflict.
- Beaten: Overcome by an opponent.
- Rejected: Refused or not accepted.
- Denied: Not granted or approved.
- Unaccepted: Not received or approved.
- Unapproved: Not officially accepted or authorized.
- Ineffective: Unable to produce the desired result.
- Ineffectual: Lacking the power to create a useful effect.
- Fruitless: Producing no valuable result.
- Futile: Incapable of achieving success.
- Unproductive: Producing little or no useful result.
- Abortive: Ending before the intended result was achieved.
- Vain: Producing no success despite effort.
- Disappointing: Failing to meet hopes or expectations.
- Unsatisfactory: Not reaching an acceptable standard.
- Inadequate: Not sufficient for the intended purpose.
- Deficient: Lacking something needed for success.
- Flawed: Containing weaknesses or mistakes.
- Faulty: Not working or designed correctly.
- Botched: Spoiled through poor work or mistakes.
- Bungled: Handled badly or incompetently.
- Mishandled: Managed in an incorrect or careless way.
- Mismanaged: Directed or controlled poorly.
- Miscalculated: Based on an incorrect judgment or calculation.
- Misjudged: Assessed or understood incorrectly.
- Erred: Made a mistake or acted incorrectly.
- Faltered: Lost strength, confidence, or progress.
- Stumbled: Experienced difficulty or made an error.
- Underperformed: Performed below the expected level.
- Fell Short: Did not meet a goal or standard.
- Lost: Did not win or maintain control.
- Collapsed: Failed suddenly or completely.
- Foundered: Broke down after encountering serious difficulties.
- Flopped: Failed publicly or attracted little interest.
- Misfired: Failed to produce the intended effect.
- Backfired: Produced an unwanted result instead of the intended one.
- Fell Through: Did not happen or reach completion.
- Came to Nothing: Ended without producing a result.
- Broke Down: Stopped functioning or progressing.
- Malfunctioned: Operated incorrectly.
- Crashed: Stopped working suddenly.
- Stopped Working: Ceased to function properly.
- Gave Out: Became unable to continue functioning.
- Deteriorated: Became progressively worse.
- Weakened: Lost strength or effectiveness.
- Defaulted: Failed to meet a financial or legal obligation.
- Neglected: Failed to provide necessary attention or care.
- Missed: Failed to reach, notice, or achieve something.
- Aborted: Ended before successful completion.
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Synonyms for Enter
Synonyms for Failed by Context
When Failed Means Unsuccessful
Unsuccessful, fruitless, futile, unproductive, ineffective, vain, and abortive describe something that did not produce the intended result.
Example: The attempt to repair the damage failed.
Alternative: The attempt to repair the damage was unsuccessful.
Unsuccessful is the clearest general alternative. Fruitless emphasizes that effort produced no useful result, while futile suggests that success was unlikely or impossible.
When Failed Means Did Not Pass
Did not pass, fell short, underperformed, missed, and was unsuccessful can describe poor results in examinations, assessments, or qualification processes.
Example: He failed the entrance examination.
Alternative: He did not pass the entrance examination.
Did not pass is often less harsh than failed. Underperformed suggests that someone achieved less than expected, but it does not always mean that the person officially failed.
When Failed Means Rejected
Rejected, denied, unaccepted, unapproved, and refused are suitable when an application, claim, proposal, or request does not receive approval.
Example: Her funding application failed.
Alternative: Her funding application was rejected.
Rejected is more precise when a decision maker actively refuses something. Denied works well for permission, benefits, claims, and access.
When Failed Means Stopped Working
Malfunctioned, broke down, crashed, gave out, stopped working, and became faulty describe equipment or systems that ceased functioning.
Example: The computer failed during the presentation.
Alternative: The computer crashed during the presentation.
Malfunctioned means that something operated incorrectly. Crashed usually describes a sudden failure, especially in computer systems. Broke down is natural for machines and vehicles.
When Failed Means Did Not Happen
Fell through, collapsed, foundered, came to nothing, and was aborted describe plans, agreements, events, or negotiations that did not reach completion.
Example: The agreement failed after months of discussion.
Alternative: The agreement fell through after months of discussion.
Fell through is common in conversation. Collapsed sounds stronger and suggests a sudden or complete failure.
When Failed Means Performed Poorly
Underperformed, faltered, stumbled, disappointed, fell short, and was defeated describe weak performance.
Example: The team failed during the final stage.
Alternative: The team faltered during the final stage.
Faltered suggests that performance weakened after a promising start. Fell short means the final result did not meet the required standard.
When Failed Means Was Handled Badly
Botched, bungled, mishandled, mismanaged, misjudged, and miscalculated describe failure caused by errors or poor decisions.
Example: The company failed to manage the transition properly.
Alternative: The company mishandled the transition.
Botched usually describes a badly completed task. Mismanaged suits projects, organizations, resources, and operations.
When Failed Means Did Not Perform a Duty
Neglected, omitted, missed, defaulted, and did not fulfill can describe failing to complete a responsibility.
Example: The organization failed to protect confidential information.
Alternative: The organization neglected to protect confidential information.
Neglected suggests insufficient care or attention. Defaulted is more specific and usually relates to payments, contracts, or legal obligations.
Another Word for Failed
The best general replacement for failed is unsuccessful. It clearly communicates that something did not achieve its intended result without explaining a specific cause.
The most accurate alternative still depends on context. Rejected is better for an application, malfunctioned for a machine, ineffective for a method, and defeated for a competition.
Original: The first experiment failed.
Better Option: The first experiment was unsuccessful.
Original: His application failed during the review process.
Better Option: His application was rejected during the review process.
Original: The security system failed overnight.
Better Option: The security system malfunctioned overnight.
Original: The team failed to reach its sales target.
Better Option: The team fell short of its sales target.
When Not to Use “Failed”
Avoid failed when the word does not explain what actually happened. A more specific synonym can help readers understand whether something was rejected, ineffective, broken, defeated, or incomplete.
Weak: The system failed.
Better: The system crashed after its memory became overloaded.
Do not use failed to describe a person as though one disappointing result defines their entire identity.
Weak: He is a failed student.
Better: He did not pass the course this term.
Avoid failed when an attempt was only delayed or paused rather than permanently unsuccessful.
Weak: The project failed because the meeting was postponed.
Better: The project was delayed because the meeting was postponed.
Do not use failed when faulty describes a defect rather than a complete breakdown.
Weak: The device was failed when it arrived.
Better: The device was faulty when it arrived.
Avoid failed when the sentence requires a more precise explanation of poor performance.
Weak: The marketing campaign failed.
Better: The marketing campaign attracted fewer customers than expected.
Do not use failed and unsuccessful together because they repeat the same basic meaning.
Weak: The failed attempt was unsuccessful.
Better: The attempt was unsuccessful.
Words Commonly Confused With Failed
Failed vs Unsuccessful: Failed can describe an action, result, duty, test, or machine. Unsuccessful mainly describes something that did not achieve its purpose.
Failed vs Defeated: Failed means not succeeding generally. Defeated specifically means being beaten by an opponent.
Failed vs Rejected: Failed may describe any lack of success. Rejected means that a person or authority actively refused something.
Failed vs Faulty: Failed means something stopped functioning or did not succeed. Faulty means something contains a defect and may still work poorly.
Failed vs Ineffective: Failed describes the result of an attempt. Ineffective describes something that lacks the ability to produce the required effect.
Failed vs Broken: Failed can apply to plans, people, duties, and machines. Broken mainly describes something physically damaged or unable to function.
Failed vs Malfunctioned: Failed may mean that a machine stopped completely. Malfunctioned means that it operated incorrectly, whether briefly or continuously.
Failed vs Fell Short: Failed can suggest complete lack of success. Fell short suggests progress was made, but the final standard was not reached.
Failed vs Aborted: Failed means the desired outcome was not achieved. Aborted means the activity was deliberately stopped before completion.
Failed vs Collapsed: Failed is broad and neutral. Collapsed suggests a sudden, serious, or complete breakdown.
Which Synonym Should You Choose?
Choose unsuccessful when you need a neutral and general replacement for failed.
Choose defeated when someone loses a contest, election, battle, or competition.
Choose rejected when an application, proposal, request, or idea is not accepted.
Choose denied when permission, access, payment, or a claim is refused.
Choose ineffective when a method, treatment, strategy, or policy produces no useful effect.
Choose fruitless when considerable effort produces no valuable result.
Choose futile when success appears impossible regardless of effort.
Choose underperformed when a person, team, investment, or business performs below expectations.
Choose fell short when the result is close to the target but does not meet it.
Choose botched when a task is spoiled through poor execution.
Choose mismanaged when a project, organization, or resource is controlled badly.
Choose malfunctioned when a machine or system operates incorrectly.
Choose crashed when a computer program or system stops suddenly.
Choose broke down when a machine, vehicle, negotiation, or process stops functioning.
Choose fell through when an agreement, arrangement, or plan does not happen.
Choose collapsed when a system, plan, business, or negotiation fails suddenly.
Choose aborted when an activity is stopped before completion.
Choose defaulted when someone fails to make a payment or meet a legal obligation.
Choose neglected when someone fails to give proper attention or care.
Real Life Examples of “Failed” in Sentences
Original: The first attempt failed because the instructions were unclear.
Better Option: The first attempt was unsuccessful because the instructions were unclear.
Original: She failed the final examination.
Better Option: She did not pass the final examination.
Original: His application failed to gain approval.
Better Option: His application was rejected.
Original: The engine failed during the journey.
Better Option: The engine broke down during the journey.
Original: The treatment failed to reduce the symptoms.
Better Option: The treatment proved ineffective in reducing the symptoms.
Original: The negotiations failed after both sides rejected the agreement.
Better Option: The negotiations collapsed after both sides rejected the agreement.
Original: The team failed to meet its annual target.
Better Option: The team fell short of its annual target.
Original: The technician failed to complete the repair correctly.
Better Option: The technician botched the repair.
Original: The planned event failed because the venue became unavailable.
Better Option: The planned event fell through because the venue became unavailable.
Original: The computer system failed without warning.
Better Option: The computer system crashed without warning.
Synonym Groups and Usage Differences
General Failure Group
Unsuccessful, disappointing, unsatisfactory, inadequate, deficient, and unproductive describe results that do not meet an intended goal or standard.
Unsuccessful is neutral and broad. Disappointing focuses on unmet hopes, while unsatisfactory suggests that a minimum acceptable standard was not reached.
Example: The trial was unsuccessful and required a different approach.
Defeat Group
Defeated, beaten, lost, and fell short describe losing or not achieving victory.
Defeated and beaten require an opponent in most contexts. Lost is common in everyday language, while fell short emphasizes an unmet target.
Example: The team was defeated by a more experienced opponent.
Rejection Group
Rejected, denied, unaccepted, and unapproved describe applications, requests, proposals, or claims that did not receive acceptance.
Rejected is the broadest option. Denied is common for rights, permission, access, and benefits.
Example: The request was denied because it lacked supporting documents.
Ineffectiveness Group
Ineffective, ineffectual, fruitless, futile, vain, and unproductive describe actions or methods that produce no useful result.
Ineffective focuses on poor results. Futile suggests that success was impossible, while fruitless emphasizes wasted effort.
Example: Repeating the same ineffective method did not solve the problem.
Poor Execution Group
Botched, bungled, mishandled, mismanaged, miscalculated, and misjudged describe failure caused by mistakes or weak decisions.
Botched and bungled are more conversational. Mishandled and mismanaged are more suitable for formal reports.
Example: The organization mishandled the public announcement.
Weak Performance Group
Underperformed, faltered, stumbled, weakened, and deteriorated describe performance that declined or remained below expectations.
Faltered suggests a temporary loss of strength or confidence. Deteriorated indicates that conditions became progressively worse.
Example: Sales faltered during the final quarter.
Breakdown Group
Failed, malfunctioned, crashed, broke down, stopped working, and gave out describe equipment or systems that no longer function correctly.
Malfunctioned may describe partial or temporary problems. Failed and stopped working can indicate complete loss of function.
Example: The control panel malfunctioned during the inspection.
Incomplete Plan Group
Fell through, collapsed, foundered, came to nothing, aborted, and misfired describe plans or actions that did not reach the intended outcome.
Fell through is natural for arrangements. Aborted indicates deliberate early termination, while misfired means the action produced an unintended result.
Example: The partnership agreement fell through at the final stage.
Antonyms of Failed
The opposite of failed depends on whether the word refers to success, approval, performance, completion, or proper operation.
Successful: Achieving the intended result.
Passed: Reaching the required academic or professional standard.
Approved: Officially accepted or authorized.
Accepted: Received favorably or allowed.
Effective: Producing the intended result.
Productive: Creating useful or valuable results.
Accomplished: Completed successfully.
Completed: Finished fully.
Victorious: Successful in a contest or conflict.
Functioning: Operating correctly.
Operational: Ready and able to work.
Reliable: Performing consistently and correctly.
Adequate: Meeting the required standard.
Thriving: Growing or performing very successfully.
Fulfilled: Completed or carried out as required.
Comparison: Failed vs Related Words
Failed vs Unsuccessful
Failed can function as a verb or adjective and applies to tests, duties, plans, machines, and attempts. Unsuccessful is mainly an adjective describing a result that did not achieve its purpose.
Example With Failed: The first repair attempt failed.
Example With Unsuccessful: The first repair attempt was unsuccessful.
Failed vs Rejected
Failed is broad and does not always explain why success was not achieved. Rejected specifically means that someone refused or did not accept something.
Example With Failed: His application failed during the selection process.
Example With Rejected: His application was rejected because it was incomplete.
Failed vs Ineffective
Failed focuses on the final result. Ineffective describes a method, tool, treatment, or strategy that cannot produce the desired effect.
Example With Failed: The campaign failed to increase attendance.
Example With Ineffective: The campaign was ineffective at increasing attendance.
Failed vs Faulty
Failed means that something stopped working or did not succeed. Faulty means it contains a defect, even when it continues to operate.
Example With Failed: The sensor failed during the test.
Example With Faulty: A faulty sensor produced inaccurate readings.
Failed vs Malfunctioned
Failed may indicate complete loss of function. Malfunctioned means a device or system behaved incorrectly.
Example With Failed: The generator failed during the storm.
Example With Malfunctioned: The generator malfunctioned and produced unstable power.
Failed vs Fell Short
Failed may suggest total lack of success. Fell short is softer and indicates that some progress was made, but the required level was not reached.
Example With Failed: The team failed to achieve its target.
Example With Fell Short: The team fell short of its target by five percent.
Failed vs Collapsed
Failed is neutral and general. Collapsed communicates sudden, serious, or complete failure.
Example With Failed: The negotiations failed after several meetings.
Example With Collapsed: The negotiations collapsed after one side withdrew.
Common Phrases and Expressions With “Failed”
Failed Attempt: An effort that did not achieve its purpose.
Failed Test: An assessment in which the required standard was not reached.
Failed Examination: A formal examination that a person did not pass.
Failed Application: A request that was rejected or did not meet the requirements.
Failed Project: A project that did not achieve its main objectives.
Failed Plan: A plan that did not produce the intended result.
Failed Experiment: A test that did not confirm the expected result or operate correctly.
Failed System: A system that stopped functioning or produced unacceptable results.
Failed Business: A business that could not continue operating successfully.
Failed Negotiation: A discussion that ended without an agreement.
Common Mistakes to Avoid
A common mistake is using failed without enough context. Explain whether the person did not pass, the plan was rejected, the method was ineffective, or the machine stopped working.
Avoid describing an individual as a failure based on one event. Focus on the action or result rather than assigning a permanent negative identity.
Do not confuse failed with faulty. A failed device has stopped working, while a faulty device has a defect and may still operate.
Avoid replacing failed with defeated when no opponent is involved. A proposal can fail or be rejected, but it is not usually defeated unless it loses a formal vote.
Do not use unsuccessful and failed together in the same phrase because their meanings repeat each other.
Incorrect: It was an unsuccessful failed attempt.
Correct: It was an unsuccessful attempt.
Use the correct verb structure after failed. Failed is commonly followed by an object or by to and a base verb.
Correct: She failed the examination.
Correct: She failed to submit the form.
Do not say failed in submitting when you simply mean failed to submit.
Unnatural: He failed in submitting the report on time.
Natural: He failed to submit the report on time.
Choose a synonym that reveals the cause or type of failure. Precise language is more useful than replacing failed only to avoid repetition.
Conclusion
Synonyms for failed should be selected according to the exact type of failure being described. Unsuccessful is the best general replacement, while rejected suits applications and proposals. Ineffective describes methods that produce poor results, and defeated works for competitions. Use malfunctioned or broke down for equipment, botched for badly completed work, and fell short for unmet targets. Choosing a precise alternative makes sentences clearer, more natural, and more informative.
FAQs About Synonyms for Failed
What Is the Best Synonym for Failed?
Unsuccessful is the best general synonym for failed. More specific choices include rejected, defeated, ineffective, malfunctioned, and fell short.
What Is a Formal Synonym for Failed?
Unsuccessful, ineffective, deficient, inadequate, rejected, and underperformed are suitable formal alternatives. The best word depends on the sentence context.
What Is Another Word for a Failed Attempt?
An unsuccessful attempt, fruitless effort, futile effort, abortive attempt, or vain effort can describe an attempt that did not succeed.
What Is a Synonym for Failed an Exam?
Did not pass, fell short of the passing score, and was unsuccessful in the examination are useful alternatives.
What Is Another Word for a Failed Plan?
An unsuccessful plan, ineffective strategy, abandoned proposal, collapsed arrangement, or plan that fell through may be suitable.
What Is a Synonym for a Failed Machine?
Malfunctioned, broke down, crashed, stopped working, became faulty, and gave out can describe a machine or system that failed.
Is Fell Short the Same as Failed?
Fell short is a softer alternative. It suggests that some progress was made, but the required target or standard was not fully achieved.
