VALIDATE Synonyms: 66 Similar and Opposite Words

Q: How does the verb 'validate' contrast with its synonyms?

Some common synonyms of validate are authenticate , confirm , corroborate , substantiate , and verify . While all these words mean "to attest to the truth or validity of something," validate implies establishing validity by authoritative affirmation or by factual proof. // validated the hypothesis by experiments

Q: When might 'authenticate' be a better fit than 'validate'?

Although the words authenticate and validate have much in common, authenticate implies establishing genuineness by adducing legal or official documents or expert opinion. // handwriting experts authenticated the diaries

Q: In what contexts can 'confirm' take the place of 'validate'?

While the synonyms confirm and validate are close in meaning, confirm implies the removing of doubts by an authoritative statement or indisputable fact. // confirmed the reports

Q: When would 'corroborate' be a good substitute for 'validate'?

While in some cases nearly identical to validate , corroborate suggests the strengthening of what is already partly established. // witnesses corroborated his story

Q: Where would 'substantiate' be a reasonable alternative to 'validate'?

The synonyms substantiate and validate are sometimes interchangeable, but substantiate implies the offering of evidence that sustains the contention. // the claims have yet to be substantiated

Q: When is 'verify' a more appropriate choice than 'validate'?

The meanings of verify and validate largely overlap; however, verify implies the establishing of correspondence of actual facts or details with those proposed or guessed at. // all statements of fact in the article have been verified

validate

verb

ˈva-lə-ˌdāt

Definition of validate

as in to verify

to give evidence or testimony to the truth or factualness of a witness independently validated the policeman's version of events

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in to prove

to show the existence or truth of by evidence the booming economy in and of itself validated the soundness of the government's economic policies

Synonyms & Similar Words

Antonyms & Near Antonyms

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How does the verb validate contrast with its synonyms?

Some common synonyms of validate are authenticate, confirm, corroborate, substantiate, and verify. While all these words mean "to attest to the truth or validity of something," validate implies establishing validity by authoritative affirmation or by factual proof.

validated the hypothesis by experiments

When might authenticate be a better fit than validate?

Although the words authenticate and validate have much in common, authenticate implies establishing genuineness by adducing legal or official documents or expert opinion.

handwriting experts authenticated the diaries

In what contexts can confirm take the place of validate?

While the synonyms confirm and validate are close in meaning, confirm implies the removing of doubts by an authoritative statement or indisputable fact.

confirmed the reports

When would corroborate be a good substitute for validate?

While in some cases nearly identical to validate, corroborate suggests the strengthening of what is already partly established.

witnesses corroborated his story

Where would substantiate be a reasonable alternative to validate?

The synonyms substantiate and validate are sometimes interchangeable, but substantiate implies the offering of evidence that sustains the contention.

the claims have yet to be substantiated

When is verify a more appropriate choice than validate?

The meanings of verify and validate largely overlap; however, verify implies the establishing of correspondence of actual facts or details with those proposed or guessed at.

all statements of fact in the article have been verified

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of validate During the test, the aircraft validated not only the takeoff system, but the ability to maneuver at various altitudes and make in-flight mission adjustments while the systems checked for airworthiness. — David Szondy october 15, New Atlas, 16 Oct. 2026 Load, concurrency, autoscaling, retry and resilience testing frequently validate the surrounding platform rather than model behavior. — Pritam Debnath, Forbes.com, 16 Oct. 2026 Ian Papautsky, a microfluidics researcher at the University of Illinois Chicago, says that Theranos’s public downfall and time in the spotlight create a strong case for validating scientific findings. — Mary Randolph, Scientific American, 16 Oct. 2026 REEPure has been validated at Cyclic Materials’ first commercial-scale plant in Canada, and a South Carolina campus is now under construction. — Richard Eisenberg, Time, 15 Oct. 2026 See All Example Sentences for validate

Recent Examples of Synonyms for validate

Verb

Some sites require you to verify your identity or confirm that the record belongs to you.

— Kurt Knutsson, FOXNews.com, 22 Oct. 2026
Officers also must verify license plate information and confirm that an alert is accurate and relevant to an active investigation before taking enforcement action.

— Nicole Buss, Sacbee.com, 22 Oct. 2026

Definition of verify

Verb

At every opportunity, Chris Brown seemed to be waiting in the wings, backflipping in Ne-Yo’s face, proving his dream of a certain era was long gone.

— Clover Hope, Pitchfork, 25 Oct. 2026
None of this means that Miller’s forecast will prove the most accurate in the days to come.

— Shawn Tully, Fortune, 24 Oct. 2026

Definition of prove

Verb

Petersen’s research established the concept of mild cognitive impairment, which lies between healthy cognitive aging and dementia.

— Richard Sima, Washington Post, 27 Oct. 2026
Beyond payment speed, Mastercard is also looking to incorporate blockchain and identity data to establish the same level of trust expected across other payment systems, Driver said.

— Jenny Lee, CNBC, 27 Oct. 2026

Definition of establish

Verb

In his telling, the military campaigns against Hamas, Hezbollah, and Iran demonstrate the value of uncompromising power.

— Eric Cortellessa, Time, 22 Oct. 2026
Completing the flight test just weeks after a captive-carry event demonstrated how quickly the program progressed through its testing sequence.

— Aamir Khollam, Interesting Engineering, 21 Oct. 2026

Definition of demonstrate

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“Validate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/validate. Accessed 27 Oct. 2026.

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