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

Synonyms & Antonyms for substantiate


demonstrate, establish, prove, show



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Choose the Right Synonym for substantiate

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

One was given the impossible task of substantiating Mr Trump’s claim that his election saw massive vote-rigging. The Economist, "There is a need for fresh thinking on human rights," 9 Aug. 2019 Police brought the case to the Prince George’s County State’s Attorney’s Office after an internal investigation substantiated the allegations, police said. Lynh Bui, Washington Post, "‘Do you have a camera in your car?’ Officer convicted of assaulting handcuffed homeless man.," 8 Aug. 2019 Kreibig, substantiating this history, says that in his native Germany, the stories of the children of East Prussia are more known now. Gail Fletcher, National Geographic, "The forgotten ‘wolf children’ of World War II," 29 July 2019 Indeed, the report reveals a staggering, mind-numbing number of lies — to the point where no American can trust a single word that comes from this president or this White House absent compelling substantiating evidence. David French, National Review, "Today, Impeachment Died Another Death," 24 July 2019 The investigation ended in 2000 without finding evidence to substantiate any of the claims. Richard Goldstein, New York Times, "Barry Kowalski, Prosecutor in Rodney King Case, Is Dead at 74," 5 July 2019 Investigators also rely on bank records, credit card statements and other evidence to substantiate allegations. Christopher Magan, Twin Cities, "Thefts from seniors in assisted living topped $117K, UMN researcher finds," 1 July 2019 Correction posted July 1, 2011 The original version of this story contained a statement about candidate Ron Paul's views that could not be substantiated. The Christian Science Monitor, "Corrections," 4 Mar. 2019 As their mothers step out to work — in the informal sector or as farmers or agricultural laborers — to substantiate the family income, underprivileged girls like Neha are shouldering the burden of care and housework. Nilanjana Bhowmick, Time, "School Has Been a Right for Girls in India Since 2009. So Why Aren’t They Going?," 27 June 2019

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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Statistics for substantiate

Last Updated

11 Aug 2019

Look-up Popularity

Time Traveler for substantiate

The first known use of substantiate was in 1610

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English Language Learners Definition of substantiate

formal : to prove the truth of (something)

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Comments on substantiate

What made you want to look up substantiate? Please tell us where you read or heard it (including the quote, if possible).


a period when something is suspended

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