as in unreasonable
having no basis in reason or fact
the accusation proved to be unfounded
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Example Sentences
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Recent Examples of unfounded
Davis police are debunking information posted on a community website of an active bomb threat in the city as unfounded and from a two-year-old social media post.
—
Darrell Smith, Sacbee.com, 27 Aug. 2025
Their presence wasn’t unfounded, as Anderfjärd and Kloser are signed to MXM, Martin’s publishing company.
—Steven J. Horowitz, Variety, 22 Aug. 2025
Another unfounded active shooter scare occurred earlier Thursday at the University of Tennessee in Chattanooga.
—Meredith Deliso, ABC News, 21 Aug. 2025
The president lacks the unilateral power to decide how individual states run elections, but his declaration speaks to long-brewing and unfounded claims by some conservatives that the country’s electoral system is insecure and vulnerable to widespread fraud.
—Drew Shaw, ProPublica, 20 Aug. 2025
See All Example Sentences for unfounded
Darrell Smith, Sacbee.com, 27 Aug. 2025
Their presence wasn’t unfounded, as Anderfjärd and Kloser are signed to MXM, Martin’s publishing company.
—Steven J. Horowitz, Variety, 22 Aug. 2025
Another unfounded active shooter scare occurred earlier Thursday at the University of Tennessee in Chattanooga.
—Meredith Deliso, ABC News, 21 Aug. 2025
The president lacks the unilateral power to decide how individual states run elections, but his declaration speaks to long-brewing and unfounded claims by some conservatives that the country’s electoral system is insecure and vulnerable to widespread fraud.
—Drew Shaw, ProPublica, 20 Aug. 2025
See All Example Sentences for unfounded
Recent Examples of Synonyms for unfounded
Adjective
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The Justice Department in its June 2024 report on problems with policing in Phoenix found that police delayed medical assistance to people who appeared to be incapacitated as a result of the use of force by officers and used unreasonable force on people who had already been wounded by officers.—
Elena Santa Cruz,
AZCentral.com,
3 Sep. 2025
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Investors had initially feared that ASDA’s undercuts would lead to market leaders Tesco and Sainsbury’s having to lower prices to an unreasonable point in order to maintain their market shares.—
John Choong,
Forbes.com,
1 Sep. 2025
Adjective
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Stephen King recently spoke to The Times UK and criticized Hollywood’s superhero movies for often depicting baseless violence.—
Zack Sharf,
Variety,
4 Sep. 2025
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In response to questions from The Tennessean, a Google spokesperson said the accusations are baseless and mischaracterize Google’s security functions.—
Angele Latham,
The Tennessean,
30 Aug. 2025
Adjective
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The totally groundless firing of Dr. Erika McEntarfer, my successor as Commissioner of Labor Statistics at BLS, sets a dangerous precedent and undermines the statistical mission of the Bureau.—
Anna Commander,
MSNBC Newsweek,
2 Aug. 2025
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Putin talks with Iranian foreign minister Russian President Vladimir Putin on Monday told Iranian Foreign Minister Abbas Araqchi in Moscow that aggression against Iran was groundless.—
Susan Miller,
USA Today,
24 June 2025
Adjective
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The Geiers are widely viewed with contempt as promoters of unsubstantiated claims that vaccines cause autism.—
Judy Stone,
Forbes.com,
3 Sep. 2025
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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
Cite this Entry
“Unfounded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfounded. Accessed 9 Sep. 2025.
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