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 Brooke Kozak, a Shaw Law Group lawyer the county hired, said that interviews and evidence substantiated the complaints of inappropriate comments, but not the claim of retaliation, according to the law firm’s report. Jake Goodrick, Sacbee.com, 27 Mar. 2025 Research from the University of Alaska Anchorage’s Institute of Social and Economic Research substantiates this. Shahar Ziv, Forbes, 19 Mar. 2025 However, nearly two weeks after Elsy Noemi Berrios, 52, was taken into Immigration and Customs Enforcement custody, DHS has yet to disclose any evidence to substantiate its claim against the Salvadoran woman to the public or, her attorneys say, to them. Polo Sandoval, CNN Money, 12 Apr. 2025 As of yet, Allure has been unable to substantiate the coma claim (our source confirmed with three different people who have knowledge of the matter that a plastic surgeon's rib patient wound up in an ICU in Los Angeles). Jolene Edgar, Allure, 10 Apr. 2025 See All Example Sentences for substantiate
Recent Examples of Synonyms for substantiate
Verb
  • The regular wide version has been my go-to choice for trips for the past year, proving itself a capable all-round pad.
    Scott Gilbertson, Wired News, 11 May 2025
  • What began as a typical squabble between siblings, Clementine, 6, and Maisie, 3, quickly turned into a beautiful moment of understanding, proving that even the youngest of children can navigate difficult emotions with empathy and care.
    Tereza Shkurtaj, People.com, 11 May 2025
Verb
  • America, meet the Orb: a bold new attempt to verify you’re not a bot — just by looking you in the eye.
    Jennifer Jolly, USA Today, 2 May 2025
  • Almost 82,000 also provided data from activity trackers that allowed researchers to verify their speed.
    Simon Spichak, Health, 2 May 2025
Verb
  • This understanding isn’t clinical, but embodied—what people feel, witness, share, and pass down.
    Marion Renault, The Atlantic, 13 May 2025
  • Cage stylishly embodies the synthesis of the two modes in the shot by donning the instantly recognizable spidey suit under the classic uniform of a noir protagonist: a trench coat and fedora tipped low.
    Ryan Coleman, EW.com, 13 May 2025
Verb
  • The report also presses the Federal Communications Commission to establish performance standards and develop measurable goals and monitoring for WEA performance, and ensure mobile providers include location-aware maps by the December 2026 deadline.
    Jenny Jarvie, Los Angeles Times, 12 May 2025
  • In 1946, President Harry Truman signed the National School Lunch Act, which established the National School Lunch Program.
    Sonja Anderson, Smithsonian Magazine, 12 May 2025
Verb
  • Rising protectionism fueled by a populist backlash to globalization, a post-pandemic push for economic security reinforced by the shock of Russia’s invasion of Ukraine, and, above all, intensifying U.S.-Chinese strategic rivalry converged to shatter the illusion of a global tech ecosystem.
    Ian Bremmer, Foreign Affairs, 13 May 2025
  • When financial literacy and empowerment are neglected, wealth-building opportunities slip through the cracks, reinforcing the cycle of instability.
    Shay Levister, Forbes.com, 13 May 2025
Verb
  • Portraying her campaign as orchestrated by anyone other than her does a disservice to voters and diminishes the leadership she’s demonstrated.
    Chicago Tribune, Chicago Tribune, 13 May 2025
  • The ability for adversaries to store histories of events that never actually occurred directly into an LLM’s memory database was demonstrated last year.
    Dan Goodin, ArsTechnica, 13 May 2025
Verb
  • On May 3, the actor attended Moda Operandi, the pre-Met Gala cocktail party orchestrated by Donatella Versace at The Twenty Two hotel, all but confirming her attendance at the biggest fashion event of the year.
    María Munsuri, Glamour, 4 May 2025
  • The news was confirmed via a public obituary and his daughter Anne Marie Scalies’ statement to The Hollywood Reporter.
    Natalie Oganesyan, Deadline, 4 May 2025
Verb
  • The opinions expressed in this article are not intended to replace any professional or expert accounting and/or tax advice whatsoever.
    Melissa Houston, Forbes.com, 4 May 2025
  • The last month of Trump’s first 100 days was characterized by a seesaw of blame, with the president expressing alternating between directing his public outrage at Putin and Zelensky.
    Brady Knox, The Washington Examiner, 3 May 2025

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Cite this Entry

“Substantiate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/substantiate. Accessed 18 May. 2025.

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