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

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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

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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 Between fiscal years 2015 to 2019, agency inspectors general substantiated only 100 allegations of employee time and attendance misconduct or fraud out of a federal workforce of around 2.1 million employees (the GAO report did not include postal workers). Laura Doan, CBS News, 27 Feb. 2025 This set off years of conspiracy theories about how powerful individuals connected to him might have ordered him murdered to protect themselves, though none have been substantiated. Miles Klee, Rolling Stone, 8 Mar. 2025 This concern is substantiated by the fact that Singapore has emerged as Nvidia’s second-largest market, representing approximately $23 billion in sales in FY’25, or about 18% of revenue, compared to only $2.3 billion, or 8% of revenue, in FY’23. Trefis Team, Forbes, 5 Mar. 2025 About half of the claims in the documents were substantiated by top-level investigators, meaning they were affirmed and led to some sort of reprimand – up to firing and a bar from re-enlistment. Nick Penzenstadler, USA TODAY, 4 Mar. 2025 See All Example Sentences for substantiate
Recent Examples of Synonyms for substantiate
Verb
  • The first three days of the season took care of such foolish rookie thoughts and proved to be a humbling, but learning, experience.
    Thomas Weddle, Outdoor Life, 17 Apr. 2025
  • Naysayers insisted that increasing content costs would match the company’s rapid topline and subscriber growth, and profits would prove illusory.
    Michael Khouw, CNBC, 17 Apr. 2025
Verb
  • But now, the SSA is changing that policy, which a White House official told CBS MoneyWatch is due to the rollout of anti-fraud software that will be able to identify anomalies and flag potential fraud when people verify their identities over the phones.
    Anne Marie Drummond Lee, CBS News, 10 Apr. 2025
  • The most recent press release on the matter, dated March 26, announced that many claimants would no longer be able to verify their identity with the SSA by phone.
    Raja Krishnamoorthi, MSNBC Newsweek, 9 Apr. 2025
Verb
  • This is embodied in Ted Danson’s character, Michael, a demon who starts out as an architect of eternal torture but undergoes a profound transformation.
    Mark Travers, Forbes.com, 18 Apr. 2025
  • In some ways, this landscaping idea embodies a farm or agricultural setting where steel barns and tractors are common.
    Katherine McLaughlin, Architectural Digest, 18 Apr. 2025
Verb
  • What things like weekly releases, time slots, and appointment television do is establish a habit.
    Kathryn VanArendonk, Vulture, 18 Apr. 2025
  • The Pentagon established several timelines for capabilities to be delivered starting with early 2026 to those delivered after 2030.
    Mike Stone and Marisa Taylor, USA Today, 18 Apr. 2025
Verb
  • As the fireline is constructed, inspected or reinforced, mappers record those details to adjust the containment percentage.
    CA WILDFIRE BOT, Sacbee.com, 19 Apr. 2025
  • The results reinforce the idea that regeneration of major body parts requires the re-establishment of the signals that lay out organization of the embryo in development—something that gets complicated if those signals are currently acting to organize the embryo.
    John Timmer, ArsTechnica, 18 Apr. 2025
Verb
  • That call demonstrates, Parrish said, why fire departments and utility companies are cautious when working a gas leak.
    Laura Bauer, Kansas City Star, 19 Apr. 2025
  • Jack Moorhouse, a 19-year-old midfielder, has demonstrated an ability to pick up the ball and carry it up the pitch at youth level — an attribute sorely lacking among the first-team squad.
    Mark Critchley, New York Times, 19 Apr. 2025
Verb
  • An official familiar with the matter confirmed to ABC News that days after Vance's visit, Col. Sussanah Meyers wrote an email to base personnel that distanced the base from some of the vice president's comments about Denmark, of which Greenland is a semi-autonomous territory.
    Luis Martinez, ABC News, 11 Apr. 2025
  • He was pronounced dead by a physician at 6:05 p.m., the South Carolina Department of Corrections confirmed to CBS News.
    CBS News, CBS News, 11 Apr. 2025
Verb
  • After catching wind of Rock’s new love interest, Saffold took to social media to weigh in on the pairing, beginning her comments with what some took as a hint of shade before appearing to express her approval of Rock dating Newton.
    Preezy Brown, VIBE.com, 10 Apr. 2025
  • Booker expressed just as much after the Suns suffered a 38-point loss to Golden State on Tuesday.
    Shane Young, Forbes.com, 9 Apr. 2025

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Cite this Entry

“Substantiate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/substantiate. Accessed 23 Apr. 2025.

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