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

Synonyms & Similar Words

Relevance

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

Synonym Chooser

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 Demographers who attempted to validate his age wrote that their investigation uncovered irregularities and inconsistencies. —

Dhruv Khullar, New Yorker, 29 June 2026 At its best, the film rebuffs standard-issue 1950s heteronormativity, validating queerness at a moment when the Motion Picture Production Code forbade explicit reference to it. —

Liam Hess, Vogue, 28 June 2026 The 18-year-old McKenna is from Yukon’s capital of Whitehorse and has been a prolific scorer on both sides of the Canadian border, with his selection validating the projections of the left winger being his age group’s top prospect more than two years ago. —

Los Angeles Times, 27 June 2026 With most of Yukon watching and a loud presence of their fans in the stands, the Maple Leafs chose the Penn State left winger, validating longstanding projections of McKenna being his age group’s top prospect. —

John Wawrow, Chicago Tribune, 26 June 2026 See All Example Sentences for validate

Recent Examples of Synonyms for validate

Verb

Throughout June, The Times verified Ukrainian strikes on oil and gas storage facilities, compression stations and power plants.

— Marc Santora, New York Times, 4 July 2026
At the streaming giant’s request, both Kalshi and Polymarket have now removed Spotify’s logo from their markets and adjusted their language to avoid implying that Spotify had verified its chart results.

— Will McCurdy, PC Magazine, 4 July 2026

Definition of verify

Verb

Ecuador boasts proven talent such as Moisés Caicedo of Chelsea in England; William Pacho of Paris Saint-Germain in France; Piero Hincapié of Arsenal; and Joel Ordóñez of Club Brugge in Belgium.

— Eduard Cauich, Los Angeles Times, 30 June 2026
Investors have a love-hate relationship with stocks Investment experts say the survey results prove, more than anything, that American investors don’t entirely trust the stock market.

— Daniel de Visé, USA Today, 30 June 2026

Definition of prove

Verb

Pat George, a frequent flier, avoided a line at the Admirals Club in Miami because a representative called ahead to a second lounge near Gate D15 to confirm there was no wait.

— Christopher Elliott, USA Today, 2 July 2026
Although the panel date has not been confirmed, the members and the team behind the webcomic will be on it to chat about their upcoming plans.

— Laura Sirikul, Forbes.com, 2 July 2026

Definition of confirm

Verb

Organizations considering a pilot should establish measurable outcomes upfront and track productivity, engagement, turnover, customer satisfaction, operational performance, and financial impact over time.

— Johnny C. Taylor Jr, USA Today, 30 June 2026
The state has not yet begun reporting its results, but protocols were established in 2021.

— Susanne Rust Follow, Los Angeles Times, 30 June 2026

Definition of establish

Verb

Alnaji was part of a pro-Palestinian group protesting over the Israel-Hamas war in Gaza and Kessler was demonstrating in support of Israel, authorities have said.

— Phil Helsel, NBC news, 2 July 2026
The resulting bio-char demonstrated a heating value of 29 MJ/kg, meaning that burning 1 kg of the fuel will provide 29 MJ of thermal energy.

— New Atlas, New Atlas, 1 July 2026