sub·​stan·​ti·​ate | \ səb-ˈstan(t)-shē-ˌāt How to pronounce substantiate (audio) \
substantiated; substantiating

Definition of substantiate

transitive verb

1 : to give substance or form to : embody
2 : to establish by proof or competent evidence : verify substantiate a charge

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Other Words from substantiate

substantiation \ səb-​ˌstan(t)-​shē-​ˈā-​shən How to pronounce substantiate (audio) \ noun
substantiative \ səb-​ˈstan(t)-​shē-​ˌā-​tiv How to pronounce substantiate (audio) \ adjective

Synonyms & Antonyms for substantiate



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confirm, corroborate, substantiate, verify, authenticate, validate mean to attest to the truth or validity of something. confirm implies the removing of doubts by an authoritative statement or indisputable fact. confirmed the reports corroborate suggests the strengthening of what is already partly established. witnesses corroborated his story substantiate implies the offering of evidence that sustains the contention. the claims have yet to be substantiated 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 authenticate implies establishing genuineness by adducing legal or official documents or expert opinion. handwriting experts authenticated the diaries validate implies establishing validity by authoritative affirmation or by factual proof. validated the hypothesis by experiments

Examples of substantiate in a Sentence

substantiated his claim to local mountaineering fame with a photo of himself on the summit of Mount McKinley Mr. MacGregor couldn't substantiate that it was Peter, and not some other rabbit, in the cabbage patch.
Recent Examples on the Web The others will be addressed in separate articles, ensuring each has the scope to explain the data and substantiate it properly. Brooke Roberts-islam, Forbes, 11 Oct. 2021 The Denver Post reported the findings released Friday didn’t substantiate the claims of fraud and suppression. From Usa Today Network And Wire Reports, USA TODAY, 27 Sep. 2021 The ultimate questions will be: Does the growth substantiate the profit, and what is the ultimate earnings potential of the business? Douglas Palmer, Forbes, 1 Sep. 2021 Police could not substantiate the man's claim, a highway patrol report said. NBC News, 3 Aug. 2021 Lalor said an investigation did not substantiate the woman’s claims and that Palamar is still working for the department. Fox News, 11 July 2021 In the new filing, the FTC laid out a detailed analysis to substantiate its monopoly power claim. NBC News, 19 Aug. 2021 But current data is able to truly substantiate its ability to increase blood flow. Zee Krstic, Good Housekeeping, 6 Aug. 2021 The agency said rules prohibit such hazards but nonetheless was unable to substantiate that a violation had occurred. Jamie Goldberg, oregonlive, 25 July 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'substantiate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of substantiate

1610, in the meaning defined at sense 1

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Time Traveler for substantiate

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The first known use of substantiate was in 1610

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Dictionary Entries Near substantiate

substantia nigra



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Last Updated

14 Oct 2021

Cite this Entry

“Substantiate.” Dictionary, Merriam-Webster, Accessed 15 Oct. 2021.

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More Definitions for substantiate



English Language Learners Definition of substantiate

: to prove the truth of (something)

More from Merriam-Webster on substantiate

Nglish: Translation of substantiate for Spanish Speakers

Britannica English: Translation of substantiate for Arabic Speakers


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