1
as in to prove
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

Synonyms & Similar Words

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Antonyms & Near Antonyms

2
3
as in to embody
to represent in visible form the artist's intense feelings are substantiated by his paintings' bold colors and broad brush strokes

Synonyms & Similar Words

Antonyms & Near Antonyms

4
5
as in to reinforce
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

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

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

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 substantiate Some allegations in the investigation were not substantiated, the report said. Alexis Timko, Los Angeles Times, 19 Jan. 2025 Israel claims to have killed over 17,000 Hamas fighters but has not provided evidence to substantiate the figure. Yaakov Katz, Newsweek, 17 Jan. 2025 One possible theory that has neither been substantiated nor ruled out as of Monday, according to officials, is the involvement of transmission lines or electric facilities in inciting any of the LA County fires. Megan Christie, ABC News, 13 Jan. 2025 Claims of widespread non-citizen voter fraud in Kansas and across the U.S. have never been substantiated. Matthew Kelly, Kansas City Star, 15 Jan. 2025 See All Example Sentences for substantiate
Recent Examples of Synonyms for substantiate
Verb
  • The decision immediately proved controversial, with the crowd loudly booing both players during their run.
    Josh Hammer, Newsweek, 16 Feb. 2025
  • But Saturday’s loss to the Pirates, who came in sitting in last place in the Big East and on a nine-game losing skid, proved the two-time reigning champs still have a long ways to go.
    Joe Arruda, Hartford Courant, 16 Feb. 2025
Verb
  • Critically, each action is verified and judged by an expert panel (including Duarte).
    Vitas Carosella, Forbes, 23 Feb. 2025
  • In his request, Zambada argued that the legality of his entering the United States has not been verified and asked that he instead be tried in Mexico, according to a report in Mexico's Reforma newspaper Friday.
    Democrat-Gazette Staff From Wire Reports, arkansasonline.com, 22 Feb. 2025
Verb
  • These leadership roles embody his dedication to knowledge sharing within the industry.
    Jason Phillips, USA TODAY, 19 Feb. 2025
  • In fact, Saira’s ongoing battle with anxiety is one of the film’s strengths, using the unlimited scope of animation to embody mental illness in a very physical and relatable way.
    David Opie, IndieWire, 18 Feb. 2025
Verb
  • But instead of leaving the area, Mr. Jafri became involved in politics to fight for India’s secular traditions, and helped established the Gulberg Society, a Muslim housing complex in the majority Hindu area.
    Hari Kumar, New York Times, 17 Feb. 2025
  • Washington also established the tradition that presidents typically leave the capital and public office and go home.
    The Editors, National Review, 17 Feb. 2025
Verb
  • Offering health-conscious customers discounts or cash-back rewards for buying healthy items reinforces positive behavior while strengthening customer loyalty.
    Jon Jacobson, Forbes, 18 Feb. 2025
  • Her plan, Jud said, was probably only reinforced after his mom endured the death of Regenhardt on April 25, 2023.
    Tim Botos, USA TODAY, 18 Feb. 2025
Verb
  • Putin’s reckless gamble in Ukraine demonstrated his willingness to sacrifice lucrative economic ties to Europe for glory.
    Sergey Radchenko, Foreign Affairs, 18 Feb. 2025
  • Since bursting onto the high school scene two years ago, Heeney has demonstrated moxie, toughness and strength.
    Patrick Z. McGavin, Chicago Tribune, 17 Feb. 2025
Verb
  • Hoffner did confirm that all 25 locations were owned by one franchise-owner, which continues to own and operate other Dairy Queen restaurants in the state.
    Alana Edgin, USA TODAY, 25 Feb. 2025
  • The team confirmed the change as the Yankees began spring training in Florida over the weekend.
    Jon Blistein, Rolling Stone, 24 Feb. 2025
Verb
  • Barker expressed gratitude for the swift response from law enforcement.
    Sasha Pezenik, ABC News, 22 Feb. 2025
  • Calarco, who is also the author of Holding It Together: How Women Became America's Safety Net, said women are becoming increasingly aware that even when liberal men express egalitarian beliefs, many of them are willing to abandon them when push comes to shove.
    Tom Rogers, Newsweek, 22 Feb. 2025

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Cite this Entry

“Substantiate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/substantiate. Accessed 3 Mar. 2025.

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