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 next

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

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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

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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 The podcast has earned multiple international awards, including Best New Podcast in 2025, and serves as a public forum for innovators to market their ideas, compete for funding, raise awareness, and validate concepts through narrative. —

Connie Etemadi, USA Today, 10 Feb. 2026 Robust biogenic indicators must be predicted, measured, and observationally validated. —

Big Think, 9 Feb. 2026 The credential validates skills in securing AI models, defending against adversarial machine learning, and governing AI systems in compliance with evolving regulations. —

Kevin J. Conlan, Hartford Courant, 9 Feb. 2026 By writing an essay-length rebuttal rather than simply dismissing the ad with a compliment, Altman inadvertently validated Anthropic as a serious threat. —

Nick Lichtenberg, Fortune, 9 Feb. 2026 See All Example Sentences for validate

Recent Examples of Synonyms for validate

Verb

The filing argues that custody is a nonwaivable jurisdictional requirement and that remote court proceedings would raise insurmountable problems, including the inability to verify identities, enforce perjury laws, or protect classified information.

— Kaelan Deese, The Washington Examiner, 9 Feb. 2026
Some accusations couldn't be verified, investigators wrote.

— Arkansas Online, Arkansas Online, 9 Feb. 2026

Definition of verify

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valid

validate

validated

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“Validate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/validate. Accessed 15 Feb. 2026.

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Last Updated: 15 Feb 2026 - Updated example sentences

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