as in unreasonable
having no basis in reason or fact
the accusation proved to be unfounded
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Recent Examples of unfounded
His fear that the Ross miss might prove to be a bad omen was unfounded.
—
Jack Lang, New York Times, 9 June 2026
Many Peruvians accuse her of being a bad loser, who for months refused to acknowledge her loss in 2016 and then made unfounded accusations of electoral fraud in 2021.
—Simeon Tegel, NPR, 6 June 2026
That is huge considering how badly cyber stocks had sold off earlier in the year on what Jim Cramer said all along were unfounded disruption concerns.
—Morgan Chittum, CNBC, 6 June 2026
Judge Nelson’s concerns are unfounded, as Kalshi and its confederates—Robinhood, Coinbase, and the CFTC—are not relying solely on the 2010 Dodd-Frank Act update to substantiate their claim that the CEA empowers the CFTC to regulate betting on the outcomes of sporting events.
—Daniel Wallach, Forbes.com, 1 June 2026
See All Example Sentences for unfounded
Jack Lang, New York Times, 9 June 2026
Many Peruvians accuse her of being a bad loser, who for months refused to acknowledge her loss in 2016 and then made unfounded accusations of electoral fraud in 2021.
—Simeon Tegel, NPR, 6 June 2026
That is huge considering how badly cyber stocks had sold off earlier in the year on what Jim Cramer said all along were unfounded disruption concerns.
—Morgan Chittum, CNBC, 6 June 2026
Judge Nelson’s concerns are unfounded, as Kalshi and its confederates—Robinhood, Coinbase, and the CFTC—are not relying solely on the 2010 Dodd-Frank Act update to substantiate their claim that the CEA empowers the CFTC to regulate betting on the outcomes of sporting events.
—Daniel Wallach, Forbes.com, 1 June 2026
See All Example Sentences for unfounded
Recent Examples of Synonyms for unfounded
Adjective
-
The Stars may be moving from Dallas to Plano, but under no reasonable, or unreasonable, scenario will this move lead to their departure from Texas.—
Fort Worth Star-Telegram,
Fort Worth Star-Telegram,
11 June 2026
-
However, investing in public institutions and infrastructure is a costly endeavor that can seem unreasonable when local officials are struggling to balance budgets without increasing tax burdens.—
Aneri Pattani,
USA Today,
6 June 2026
Adjective
-
White House officials called those allegations baseless and asked a judge to dismiss the lawsuit.—
Los Angeles Times,
Los Angeles Times,
11 June 2026
-
White House officials have dismissed the suit as baseless.—
Nik Popli,
Time,
11 June 2026
Adjective
-
But too often groundless complaints are filed concerning behavior that was an unremarkable part of growing up just a generation ago.—
Editorial,
Boston Herald,
21 May 2026
-
China says such allegations are groundless.—
Chan Ho-Him,
Fortune,
6 May 2026
Adjective
-
Last month, Newsom sent an open letter to county election officials, urging them to speed up the counting process to fight off unsubstantiated conspiracy theories about election security.—
Kathryn Watson,
CBS News,
8 June 2026
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Chang’s unsubstantiated speculation that Doremus might have been texting coworkers on her way to work was insufficient.—
Dan Eaton,
San Diego Union-Tribune,
18 May 2026
Cite this Entry
“Unfounded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfounded. Accessed 16 Jun. 2026.
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