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 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
  • Hiltz dropped a personal best in the 800-meter yesterday, proving to be one of the favorites to earn the large prize.
    Katelyn Hutchison, Forbes.com, 6 Apr. 2025
  • Here is the story, untold until now, of one of the most unusual incidents of a 40-year political career and which proves the lion in winter is still a lion.
    Kevin Rennie, Hartford Courant, 5 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
  • Applicants must personally provide, at minimum, documents that verify their full legal names, birthdays, Social Security numbers, legal residence and lawful status.
    Elizabeth Crisp, The Hill, 9 Apr. 2025
Verb
  • For many, the Masters marks the beginning of golf season, and these pieces of clothing embody that time of year.
    John W. Dean, MSNBC Newsweek, 7 Apr. 2025
  • This special club embodies the Gamecocks’ defensive mindset, especially on the perimeter.
    Marcus Thompson II, New York Times, 6 Apr. 2025
Verb
  • Regional hubs have been established in North America, China, France, Sweden, and Spain to cover the specific requirements and automotive regulations of the respective countries.
    Jeanette Rohr, Forbes.com, 7 Apr. 2025
  • Robertson, a former sheriff’s deputy, has been the leading opponent against past measures to compensate people and to establish a law to let legal experts make that decision instead of legislators.
    Charlotte Kramon, Los Angeles Times, 6 Apr. 2025
Verb
  • This performance reinforces their value not just to the Selection Committee, but to analysts, fans, and bettors seeking a competitive edge.
    Giovanni Malloy, Forbes.com, 8 Apr. 2025
  • In terms of construction, Rolex has reinforced the bracelet using ceramic inserts at the first articulated link to limit stretch over time.
    Steven Rogers, Robb Report, 7 Apr. 2025
Verb
  • These missions typically include booster recoveries, either at sea or on land, further demonstrating the company's focus on reusable launch technology to lower the cost of access to space.
    John W. Dean, MSNBC Newsweek, 7 Apr. 2025
  • Data breaches are a major concern, as demonstrated in March 2023 when a bug allowed users to see others’ chat histories, highlighting vulnerabilities in AI systems.
    Kurt Knutsson, CyberGuy Report, FOXNews.com, 7 Apr. 2025
Verb
  • 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
  • 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
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
  • At the very least, this all sounds like good news for Ferrari Formula 1 driver Lewis Hamilton, who, earlier this season, expressed interest in helping the marque build an F40 tribute—with a manual.
    Bryan Hood, Robb Report, 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 16 Apr. 2025.

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