unsubstantiated
adjective
un·sub·stan·ti·at·ed
ˌən-səb-ˈstan(t)-shē-ˌā-təd 
: 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
As the Diddy trial continues to make headlines, the rise of cosplay journalism driven by influencers and content creators sharing unsubstantiated claims is eroding the foundation of trustworthy news.
—
Ime Ekpo, Forbes.com, 21 June 2025
In an Instagram post, Northgate said reports of raids at its stores were unsubstantiated.
—Lauren Ng, Los Angeles Times, 17 June 2025
Several outlets then reported on the unsubstantiated rumor.
—Natasha Dye, People.com, 21 May 2025
That was followed by a public spat between the two men, Musk making the unsubstantiated claim that Trump is named in the Epstein files and calling for the impeachment of the president.
—Martha McHardy, MSNBC Newsweek, 13 June 2025
See All Example Sentences for unsubstantiated
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Ime Ekpo, Forbes.com, 21 June 2025
In an Instagram post, Northgate said reports of raids at its stores were unsubstantiated.
—Lauren Ng, Los Angeles Times, 17 June 2025
Several outlets then reported on the unsubstantiated rumor.
—Natasha Dye, People.com, 21 May 2025
That was followed by a public spat between the two men, Musk making the unsubstantiated claim that Trump is named in the Epstein files and calling for the impeachment of the president.
—Martha McHardy, MSNBC Newsweek, 13 June 2025
See All Example Sentences for unsubstantiated
Cite this Entry
“Unsubstantiated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsubstantiated. Accessed 12 Jul. 2025.
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