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.
Lutnick repeated several unsubstantiated claims in the interview with Collins, including that the government is withholding data about vaccines, that vaccines are linked to a rise in autism diagnoses and that scientists were paid to say Kennedy is lying about vaccines. Sarah Fortinsky, The Hill, 31 Oct. 2024 And despite not being a swing state, the issue has thrust Virginia into the national spotlight as Republicans seize on the unsubstantiated claims that non-citizen voting will influence election outcomes in Vice President Harris' favor. Sabrina Moreno, Axios, 30 Oct. 2024 Not long after the signing, there were unsubstantiated reports that Leonard’s uncle, Dennis Robertson, sought side payments from NBA teams interested in signing his nephew. Michael McCann, Sportico.com, 27 Oct. 2024 He was exonerated once; six complaints were substantiated, four allegations were deemed unfounded and another six were unsubstantiated. Sarah Metz, CBS News, 21 Oct. 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 23 Nov. 2024.

More from Merriam-Webster on unsubstantiated

Last Updated: - Updated example sentences
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