Thesaurus

substantiate

verb

Synonyms & Antonyms of substantiate

1 to gain full recognition or acceptance of
  • substantiated his claim to local mountaineering fame with a photo of himself on the summit of Mount McKinley

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2 to give evidence or testimony to the truth or factualness of
  • Mr. MacGregor couldn't substantiate that it was Peter, and not some other rabbit, in the cabbage patch

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3 to represent in visible form
  • the artist's intense feelings are substantiated by his paintings' bold colors and broad brush strokes

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  • disembody
4 to show the existence or truth of by evidence
  • substantiate the need for a tuition increase with some concrete figures

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5 to provide evidence or information for (as a claim or idea)
  • Darwin spent the rest of his life gathering evidence to substantiate his theory of the origin of species

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See the Dictionary Definition 

Frequently Asked Questions About substantiate

How does the verb substantiate contrast with its synonyms?

Some common synonyms of substantiate are authenticate, confirm, corroborate, validate, and verify. While all these words mean "to attest to the truth or validity of something," substantiate implies the offering of evidence that sustains the contention.

the claims have yet to be substantiated

When is authenticate a more appropriate choice than substantiate?

Although the words authenticate and substantiate have much in common, authenticate implies establishing genuineness by adducing legal or official documents or expert opinion.

handwriting experts authenticated the diaries

When might confirm be a better fit than substantiate?

The meanings of confirm and substantiate largely overlap; however, confirm implies the removing of doubts by an authoritative statement or indisputable fact.

confirmed the reports

In what contexts can corroborate take the place of substantiate?

While the synonyms corroborate and substantiate are close in meaning, corroborate suggests the strengthening of what is already partly established.

witnesses corroborated his story

When could validate be used to replace substantiate?

While in some cases nearly identical to substantiate, validate implies establishing validity by authoritative affirmation or by factual proof.

validated the hypothesis by experiments

When would verify be a good substitute for substantiate?

The words verify and substantiate can be used in similar contexts, but 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

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Time Traveler for substantiate

Time Traveler

The first known use of substantiate was in 1610

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Thesaurus Entries Near substantiate

substantialness

substantiate

substantiated

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Cite this Entry

“Substantiate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/substantiate. Accessed 1 Aug. 2021.

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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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