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
Trump fired Krebs, who directed the Cybersecurity and Infrastructure Security Agency, in November 2020 after Krebs disputed the Republican president’s unsubstantiated claims of voting fraud and vouched for the integrity of the 2020 election, which Trump lost to Democrat Joe Biden.
—
Rebecca Santana, Los Angeles Times, 3 June 2025
But Gallego and several council members opposed the agreement, calling the accusations unsubstantiated and others asking for a full review before adopting it.
—Alicia Victoria Lozano, NBC news, 25 May 2025
This claim is unsubstantiated, with no evidence from the Federal Election Commission or other sources.
—Caché McClay, USA Today, 20 May 2025
The other was the longtime head of a conservative think tank with a history of advancing unsubstantiated voter fraud claims.
—Doug Bock Clark, ProPublica, 16 May 2025
See All Example Sentences for unsubstantiated
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Rebecca Santana, Los Angeles Times, 3 June 2025
But Gallego and several council members opposed the agreement, calling the accusations unsubstantiated and others asking for a full review before adopting it.
—Alicia Victoria Lozano, NBC news, 25 May 2025
This claim is unsubstantiated, with no evidence from the Federal Election Commission or other sources.
—Caché McClay, USA Today, 20 May 2025
The other was the longtime head of a conservative think tank with a history of advancing unsubstantiated voter fraud claims.
—Doug Bock Clark, ProPublica, 16 May 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 10 Jun. 2025.
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