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
The former president has also made unsubstantiated claims of vandalism causing the pool's problems.
—
Bill Goodykoontz,
AZCentral.com,
26 June 2026
The company alleged Fox broadcasted unsubstantiated allegations that Dominion's software manipulated vote counts, and the news organization settled for $787 million.
—
Aki Nace,
CBS News,
24 June 2026
Conjecture over the evidence in Kirk’s killing has fueled unsubstantiated conspiracy theories that there might have been a second shooter, or that his death was staged.
—
Rebecca Boone,
Chicago Tribune,
22 June 2026
On Facebook, TikTok and Instagram, unsubstantiated claims often go unchecked.
—
Duaa Eldeib,
ProPublica,
12 June 2026
See All Example Sentences for unsubstantiated
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Bill Goodykoontz,
AZCentral.com,
26 June 2026
The company alleged Fox broadcasted unsubstantiated allegations that Dominion's software manipulated vote counts, and the news organization settled for $787 million.
—
Aki Nace,
CBS News,
24 June 2026
Conjecture over the evidence in Kirk’s killing has fueled unsubstantiated conspiracy theories that there might have been a second shooter, or that his death was staged.
—
Rebecca Boone,
Chicago Tribune,
22 June 2026
On Facebook, TikTok and Instagram, unsubstantiated claims often go unchecked.
—
Duaa Eldeib,
ProPublica,
12 June 2026
See All Example Sentences for unsubstantiated
Cite this Entry
“Unsubstantiated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsubstantiated. Accessed 3 Jul. 2026.
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