SUBSTANTIATION Synonyms: 34 Similar and Opposite Words

substantiation

noun

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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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 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

Recent Examples of Synonyms for substantiation

Noun

Humpback whale song has previously been connected between whales between Omani and Indian coasts, Luban’s long journey is first direct evidence of an ASHW crossing the Arabian Sea.

— Laura Baisas, Popular Science, 19 June 2026
At a hearing last month, Carro ruled that a gun and notebook that prosecutors said linked Mangione to the killing could be used as evidence against him.

— Michael R. Sisak, Los Angeles Times, 19 June 2026