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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Another avenue for the administration is to invoke a section of the Trade Act of 1974 that allows tariffs against countries for unreasonable or discriminatory trade practices.—
Judith Kohler,
Denver Post,
7 May 2026
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And to be fair to Rivers, many people wondered aloud if Green was being unreasonable, incorrect, delusional or all of the above.—
Zach Harper,
New York Times,
7 May 2026
Adjective
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The common assumption that, one way or another, the strait will reopen when the crisis ends is unfounded.—
Robert Kagan,
The Atlantic,
10 May 2026
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Although an inquiry by the National Oceanic and Atmospheric Administration was closed, stating that the allegation of his removal and transport of the whale head was unfounded, the absence of a detailed public explanation still leaves the ethical questions unresolved.—
Sam Zeveloff,
STAT,
9 May 2026
Adjective
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Bianco also faces scrutiny for seizing more than 650,000 election ballots in what critics call a baseless fraud investigation.—
Hailey Wang,
Los Angeles Times,
9 May 2026
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In a new legal filing, obtained by Fox News Digital, Lively's legal team argued that Baldoni's dismissed $400 million defamation case was not only baseless but retaliatory.—
Lauryn Overhultz,
FOXNews.com,
7 May 2026
Cite this Entry
“Groundless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/groundless. Accessed 15 May. 2026.
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