as in unreasonable
having no basis in reason or fact
the accusation proved to be unfounded
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Recent Examples of unfounded
The other day, our public school system had to send a note to parents saying the rumors of an impending ICE presence in our schools was unfounded.
—
Ernesto Burden, Washington Post, 9 Feb. 2026
Public health experts also criticized the president for making unfounded claims about highly politicized health issues.
—Arkansas Online, 9 Feb. 2026
Concerns about the validity of the ransom note are not unfounded.
—Hannah Fry, Los Angeles Times, 9 Feb. 2026
Public health experts also criticized the president for making unfounded claims about highly politicized health issues.
—Matt Brown, Denver Post, 8 Feb. 2026
See All Example Sentences for unfounded
Ernesto Burden, Washington Post, 9 Feb. 2026
Public health experts also criticized the president for making unfounded claims about highly politicized health issues.
—Arkansas Online, 9 Feb. 2026
Concerns about the validity of the ransom note are not unfounded.
—Hannah Fry, Los Angeles Times, 9 Feb. 2026
Public health experts also criticized the president for making unfounded claims about highly politicized health issues.
—Matt Brown, Denver Post, 8 Feb. 2026
See All Example Sentences for unfounded
Recent Examples of Synonyms for unfounded
Adjective
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During a bumpy, contentious negotiation, hospitals complained the union’s demands were unreasonable and exorbitant.—
Philip Marcelo,
Fortune,
20 Feb. 2026
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Imagine my surprise and delight when Billboard actually took a stand against YouTube and did not give in to their unreasonable demands!—
Ethan Millman,
HollywoodReporter,
20 Feb. 2026
Adjective
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Despite the complaints that had been brought forward by school district employees, Cherry Creeks School said an investigation in 2025 came up as baseless and unfounded.—
Jack Lowenstein,
CBS News,
21 Feb. 2026
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Ex-Israeli intelligence officials told Fox News Digital that Epstein never worked for Mossad, describing the allegation as baseless and inconsistent with how the agency operates.—
Efrat Lachter , Amelie Botbol,
FOXNews.com,
15 Feb. 2026
Adjective
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Lawmakers, judges and other public servants, all under groundless presidential attack.—
James D. Zirin,
Washington Post,
3 Feb. 2026
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Similarly, the course of action that will bring recovery—reviving domestic manufacturing, revitalizing small towns, ensuring fairness for farmers and working people—is not an impossibility that will poison our minds with groundless optimism.—
Rosa Lyster,
Harpers Magazine,
30 Dec. 2025
Adjective
-
Doctors should not simply parrot unsubstantiated talking points.—
DP Opinion,
Denver Post,
16 Feb. 2026
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Trump has long made unsubstantiated accusations of fraudulent voting and has repeatedly called for the federal government to assume a broader role in administering elections.—
Nicholas Kerr,
ABC News,
13 Feb. 2026
Cite this Entry
“Unfounded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfounded. Accessed 24 Feb. 2026.
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