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
Synonyms
Examples of unsubstantiated in a Sentence
an unsubstantiated claim that was thrown out of court
Recent Examples on the Web
Happy Days actor Henry Winkler was one user who shared the unproven theory online, taking to X (formerly Twitter) to blame an unknown arsonist in an unsubstantiated claim.
—
Kevin Dolak, The Hollywood Reporter, 9 Jan. 2025
This is based on an unverified, unsubstantiated claim sent from a social media account with a record of making unsubstantiated claims.
—Kevin Lynn, Newsweek, 7 Jan. 2025
These claims are usually unsubstantiated, cause consumers to have a warped idea of an ideal pet diet, and cause health issues for their four-legged friends.
—Molly Peck, USA TODAY, 2 Jan. 2025
Soon after the shooting occurred, some X users, including prominent anti-trans accounts, began circulating wholly unsubstantiated claims that Rupnow was trans.
—Abby Monteil, Them, 17 Dec. 2024
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Kevin Dolak, The Hollywood Reporter, 9 Jan. 2025
This is based on an unverified, unsubstantiated claim sent from a social media account with a record of making unsubstantiated claims.
—Kevin Lynn, Newsweek, 7 Jan. 2025
These claims are usually unsubstantiated, cause consumers to have a warped idea of an ideal pet diet, and cause health issues for their four-legged friends.
—Molly Peck, USA TODAY, 2 Jan. 2025
Soon after the shooting occurred, some X users, including prominent anti-trans accounts, began circulating wholly unsubstantiated claims that Rupnow was trans.
—Abby Monteil, Them, 17 Dec. 2024
See all Example Sentences for unsubstantiated
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Dictionary Entries Near unsubstantiated
Cite this Entry
“Unsubstantiated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsubstantiated. Accessed 20 Jan. 2025.
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