as in unreasonable
having no basis in reason or fact
the accusation proved to be unfounded
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Recent Examples of unfounded
Maricopa County Supervisor Clint Hickman won't seek reelection in November, a decision that blows the race for his seat wide open and adds to the list of election officials leaving their posts amid a wave of unfounded voting conspiracies and threats.
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Sasha Hupka, The Arizona Republic, 17 Dec. 2024
Concerns about rigid thinking or difficulties transitioning to corporate culture are unfounded.
—Dr. Cynthia J. Young, Forbes, 15 Dec. 2024
However, Trump has made plain his disrespect for the Constitution, and people can be ruined, financially and otherwise, by unfounded investigations — as many staff members for presidents Bill Clinton and Barack Obama learned to their sorrow.
—Orlando Sentinel and South Florida Sun Sentinel Editorial Boards, Orlando Sentinel, 14 Dec. 2024
The claim that supporting Ukraine comes at the expense of Taiwan (or Israel) is baseless and unfounded.
—Yaakov Katz, Newsweek, 27 Nov. 2024
See all Example Sentences for unfounded 
Sasha Hupka, The Arizona Republic, 17 Dec. 2024
Concerns about rigid thinking or difficulties transitioning to corporate culture are unfounded.
—Dr. Cynthia J. Young, Forbes, 15 Dec. 2024
However, Trump has made plain his disrespect for the Constitution, and people can be ruined, financially and otherwise, by unfounded investigations — as many staff members for presidents Bill Clinton and Barack Obama learned to their sorrow.
—Orlando Sentinel and South Florida Sun Sentinel Editorial Boards, Orlando Sentinel, 14 Dec. 2024
The claim that supporting Ukraine comes at the expense of Taiwan (or Israel) is baseless and unfounded.
—Yaakov Katz, Newsweek, 27 Nov. 2024
See all Example Sentences for unfounded
Recent Examples of Synonyms for unfounded
Adjective
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Left in the dust ‘Cruise’ driverless robot taxis are seen at a parking lot as California Department of Motor Vehicles (DMV) revokes its self-driving car permit and citing ‘unreasonable risk to public safety’ in San Francisco, California, USA on October 24, 2023.Kristian Burt, CNBC, 11 Dec. 2024
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To determine whether those amounts posed an unreasonable risk of harm, the agency compared them to a specific benchmark — the highest concentration of formaldehyde measured by government monitors in outdoor air between 2015 and 2020.Sharon Lerner and Al Shaw, CNN, 5 Dec. 2024
Adjective
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The claims of an invasion of the Eastern seaboard by swarms of drones has every marker of a groundless social media frenzy.Michael Hiltzik, Los Angeles Times, 24 Dec. 2024
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Yet there’s much more to be said about Ohanian’s original article, as well as the glee with which conservatives seized on its headline claim as the basis for largely groundless attacks on California’s economic policies.Michael Hiltzik, Los Angeles Times, 3 Dec. 2024
Adjective
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However, police and researchers have cautioned that these reports are still unsubstantiated.Will Carless, USA TODAY, 20 Dec. 2024
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The city’s Civilian Complaint Review Board exonerated her in one instance and deemed all of the other allegations either unfounded or unsubstantiated.Shayla Colon, New York Times, 11 Dec. 2024
Thesaurus Entries Near unfounded
Cite this Entry
“Unfounded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfounded. Accessed 30 Dec. 2024.
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