as in unreasonable
having no basis in reason or fact
please stop making groundless accusations against innocent people fears of a strike proved groundless
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Recent Examples of groundless
Secretary Kennedy’s team seeks to make autism compensable under vaccine-injury rules, turning diagnoses into groundless lawsuits while draining resources from real causes and care.
—
Tom Frieden, Scientific American, 21 Nov. 2025
Earlier this week, Sulton said the new criminal case is groundless and accused prosecutors of bringing additional charges because Spencer rejected a plea deal on the first case.
—Vanessa Swales, jsonline.com, 17 Oct. 2025
The most extreme version of this debate over Kirk’s views on Israel emerged with shocking velocity after his death, in the form of groundless claims that he’d been killed by the Israelis.
—Ben Smith, semafor.com, 15 Sep. 2025
Datebook Picks Asked about the incident, Rojo firmly denied that there had been anything improper, and pointed out that the allegations were investigated by both the company’s board and the Arts Council and found to be groundless.
—Joshua Kosman, San Francisco Chronicle, 11 Jan. 2022
See All Example Sentences for groundless
Tom Frieden, Scientific American, 21 Nov. 2025
Earlier this week, Sulton said the new criminal case is groundless and accused prosecutors of bringing additional charges because Spencer rejected a plea deal on the first case.
—Vanessa Swales, jsonline.com, 17 Oct. 2025
The most extreme version of this debate over Kirk’s views on Israel emerged with shocking velocity after his death, in the form of groundless claims that he’d been killed by the Israelis.
—Ben Smith, semafor.com, 15 Sep. 2025
Datebook Picks Asked about the incident, Rojo firmly denied that there had been anything improper, and pointed out that the allegations were investigated by both the company’s board and the Arts Council and found to be groundless.
—Joshua Kosman, San Francisco Chronicle, 11 Jan. 2022
See All Example Sentences for groundless
Recent Examples of Synonyms for groundless
Adjective
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Sterling failed to live up to unreasonable expectations created by his huge contract, which quickly became a millstone.—
Liam Twomey,
New York Times,
15 May 2026
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The construction strikes many locals as both unreasonable and unstoppable.—
Rachel Monroe,
New Yorker,
14 May 2026
Adjective
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In a statement to this news organization, the sheriff’s office said that probe concluded that the latter claims were unfounded.—
Robert Salonga,
Mercury News,
18 May 2026
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The other two calls were canceled shortly after crews arrived or were determined to be unfounded.—
Kansas City Star,
Kansas City Star,
18 May 2026
Adjective
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Becerra said his rivals were making baseless claims because of his frontrunner status.—
Ben Paviour,
Sacbee.com,
15 May 2026
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Musk’s legal team accused Altman, OpenAI, and its president, Greg Brockman, of betraying the company’s founding mission, and OpenAI argued that Musk’s claims are baseless and aimed at gaining control over the company.—
David A. Graham,
The Atlantic,
14 May 2026
Cite this Entry
“Groundless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/groundless. Accessed 21 May. 2026.
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