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

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 Although social media users and some news outlets seized on the hate crime narrative, Nabha said there is no evidence to substantiate it. Rachel Swan, San Francisco Chronicle, 14 June 2022 As part of its defense, the tabloid newspaper was forced to substantiate its claims under the country’s stringent libel laws, unlike in the U.S. trial, where the burden of proof was on Depp. Winston Cho, The Hollywood Reporter, 3 June 2022 Heard, who divorced Depp in 2016 after obtaining a domestic violence restraining order, has been dragged through two trials across two continents to substantiate allegations that Depp abused her. Winston Cho, The Hollywood Reporter, 1 June 2022 Quarterly tests of reserve coverage are limited to attestations that, unlike audits, neither substantiate the data presented nor seek to identify gaps in systems or controls. Matt Sekerke, WSJ, 25 May 2022 However, the current evidence and the CDC’s changing policies do not substantiate the need for vaccine mandates for schoolchildren to achieve these public-health goals. Heidi Overton, National Review, 15 Mar. 2022 Emotional control could prove even harder to substantiate, especially in a country where open discussion of mental health can still carry a stigma. New York Times, 2 Jan. 2022 De Oreo's lawsuit also claims the diocese investigated the allegations in each letter and found no evidence to substantiate them. Mj Slaby, The Indianapolis Star, 19 Apr. 2022 Frito-Lay denied the rumor, and USA TODAY could find no other evidence to substantiate it. Nayeli Lomeli, USA TODAY, 21 Apr. 2020 See More

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.

First Known Use of substantiate

1610, in the meaning defined at sense 1

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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

28 Jun 2022

Cite this Entry

“Substantiate.” Dictionary, Merriam-Webster, Accessed 30 Jun. 2022.

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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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