unsubstantiated

adjective

un·​sub·​stan·​ti·​at·​ed ˌən-səb-ˈstan(t)-shē-ˌā-təd How to pronounce unsubstantiated (audio)
: not proven to be true : not substantiated
an unsubstantiated rumor/report
a plausible but unsubstantiated theory

Examples of unsubstantiated in a Sentence

an unsubstantiated claim that was thrown out of court
Recent Examples on the Web
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.
Lake has not conceded either race and frequently tried—and failed—to overturn the 2022 Arizona gubernatorial results in court, citing unsubstantiated claims of voting irregularities. Ewan Palmer, Newsweek, 11 Dec. 2024 On Rogan’s show, Trump repeated unsubstantiated GOP claims that the doubts sowed about the laptop’s authenticity somehow helped President Biden’s election. Todd Spangler, Variety, 26 Oct. 2024 Many users are citing unsubstantiated claims about the additive's safety, with several wrongly linking Gates to the brand. Thomas G. Moukawsher, Newsweek, 29 Nov. 2024 At the time, the company said Trump had posted unsubstantiated claims that the 2020 presidential election had been stolen and praised increasingly violent Jan 6 insurrectionists. Zac Ntim, Deadline, 28 Nov. 2024 See all Example Sentences for unsubstantiated 

Word History

First Known Use

circa 1775, in the meaning defined above

Time Traveler
The first known use of unsubstantiated was circa 1775

Dictionary Entries Near unsubstantiated

Cite this Entry

“Unsubstantiated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsubstantiated. Accessed 21 Dec. 2024.

More from Merriam-Webster on unsubstantiated

Last Updated: - Updated example sentences
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