as in evidence
something presented in support of the truth or accuracy of a claim
the signature of a witness provides substantiation that a person's will is genuine
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of substantiation
Bottoms also thinks Trump won the 2020 presidential race and was the target of an FBI assassination plot, again without substantiation.
—
Krista Kafer, Denver Post, 28 May 2026
Additionally, consumer awareness of microplastic pollution is higher than brands realize, raising the stakes for fiber content disclosure, preferred fiber programs, and claims substantiation across the supply chain.
—Angela Velasquez, Footwear News, 27 Apr. 2026
One systematic review found no substantiation for the concept as a medical condition.
—Angela Haupt, Time, 24 Apr. 2026
Companies that lack a clear understanding of the FTC’s strict substantiation requirements may adopt such claims prematurely, increasing their exposure to enforcement.
—Alexandra Harrell, Sourcing Journal, 17 Mar. 2026
The smear sites have alleged, without substantiation, that targets engaged in — among other activities — extortion, embezzlement, prostitution, drug dealing and human trafficking.
—Gary Baum, HollywoodReporter, 11 Feb. 2026
Some companies may have responded to an initial notice without all of the substantiation required.
—Guinevere Moore, Forbes.com, 26 Jan. 2026
As with the seven other cases, the claim to have brought peace in Gaza lacks substantiation.
—Timothy Joseph, The Conversation, 21 Jan. 2026
Trump’s post did not include any substantiation for his claims.
—Alicia Wallace, CNN Money, 24 Aug. 2025
Krista Kafer, Denver Post, 28 May 2026
Additionally, consumer awareness of microplastic pollution is higher than brands realize, raising the stakes for fiber content disclosure, preferred fiber programs, and claims substantiation across the supply chain.
—Angela Velasquez, Footwear News, 27 Apr. 2026
One systematic review found no substantiation for the concept as a medical condition.
—Angela Haupt, Time, 24 Apr. 2026
Companies that lack a clear understanding of the FTC’s strict substantiation requirements may adopt such claims prematurely, increasing their exposure to enforcement.
—Alexandra Harrell, Sourcing Journal, 17 Mar. 2026
The smear sites have alleged, without substantiation, that targets engaged in — among other activities — extortion, embezzlement, prostitution, drug dealing and human trafficking.
—Gary Baum, HollywoodReporter, 11 Feb. 2026
Some companies may have responded to an initial notice without all of the substantiation required.
—Guinevere Moore, Forbes.com, 26 Jan. 2026
As with the seven other cases, the claim to have brought peace in Gaza lacks substantiation.
—Timothy Joseph, The Conversation, 21 Jan. 2026
Trump’s post did not include any substantiation for his claims.
—Alicia Wallace, CNN Money, 24 Aug. 2025
Recent Examples of Synonyms for substantiation
Noun
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After gathering digital evidence, conducting witness interviews and executing search warrants, investigators obtained and served an arrest warrant Tuesday for the Yuba City man, according to a department statement.—
Reeti Malhotra,
Sacbee.com,
12 June 2026
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Manchester Police The Supreme Court affirmed Montgomery's convictions for assault, falsifying physical evidence, witness tampering, and abuse of a corpse.—
Matt Schooley,
CBS News,
11 June 2026
Noun
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The video and the SCE data offer proof that the 100-year-old line, which hadn’t been used since the early 1970s, became re-electrified and sparked the fire that killed 19 people and destroyed thousands of homes in Altadena and surrounding areas, attorneys say.—
Tony Saavedra,
Daily News,
10 June 2026
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Chasing both Daniel and Margaret around the Midwest is a deep-state company called Wardex that wants to steal back the proof in Daniel’s backpack, a heap of hard drives with footage of 70-plus years of extraterrestrial visitations.—
Amy Nicholson,
Los Angeles Times,
10 June 2026
Noun
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Emotional testimony details shocking stabbing The trial, which began with jury selection on June 1, included emotional testimony from eye witnesses and graphic video footage of the chaotic event, CBS News reported.—
N'dea Yancey-Bragg,
USA Today,
10 June 2026
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Jurors returned their verdict after several days of testimony from dozens of witnesses, including students who saw the altercation, investigators who handled the case, medical experts, and character witnesses called by the defense.—
Doug Myers,
CBS News,
10 June 2026
Noun
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The e-gates will use real-time biometric verification to match CLEAR+ members' face with their ID, allowing passengers to verify their identity in under five seconds and skip documentation checks at Transportation Security Administration podiums and proceed directly to physical screening.—
Todd Feurer,
CBS News,
9 June 2026
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Failure to submit any required tax documentation when requested may result in forfeiture of the Prize.—
AJC.com,
AJC.com,
8 June 2026
Cite this Entry
“Substantiation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/substantiation. Accessed 13 Jun. 2026.
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