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
Allowing the President to unlawfully remove Governor Cook on unsubstantiated and vague allegations would endanger the stability of our financial system and undermine the rule of law.
—
Siladitya Ray, Forbes.com, 10 Sep. 2025
But Michael Strain, director of economic policy studies at the American Enterprise Institute, noted that Trump’s promise that strong job growth is ahead contradicts his unsubstantiated claims that recent jobs data was faked to embarrass him.
—Dave Smith, Fortune, 6 Sep. 2025
This increased to over 4 percent at 8 a.m. Saturday following social media speculation about the president's public absence and unsubstantiated claims about his health.
—Brendan Cole, MSNBC Newsweek, 2 Sep. 2025
There were unsubstantiated reports of a gunman in the facility, and the ATF, in a joint operation with the New Orleans SWAT team, stormed the location with guns drawn to hunt down a gunman who never materialized.
—Mandi Wright, Freep.com, 31 Aug. 2025
See All Example Sentences for unsubstantiated
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Siladitya Ray, Forbes.com, 10 Sep. 2025
But Michael Strain, director of economic policy studies at the American Enterprise Institute, noted that Trump’s promise that strong job growth is ahead contradicts his unsubstantiated claims that recent jobs data was faked to embarrass him.
—Dave Smith, Fortune, 6 Sep. 2025
This increased to over 4 percent at 8 a.m. Saturday following social media speculation about the president's public absence and unsubstantiated claims about his health.
—Brendan Cole, MSNBC Newsweek, 2 Sep. 2025
There were unsubstantiated reports of a gunman in the facility, and the ATF, in a joint operation with the New Orleans SWAT team, stormed the location with guns drawn to hunt down a gunman who never materialized.
—Mandi Wright, Freep.com, 31 Aug. 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 18 Sep. 2025.
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