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
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
These radically groundless and unfounded allegations end now.
—Lea Veloso, StyleCaster, 11 Sep. 2025
The totally groundless firing of Dr. Erika McEntarfer, my successor as Commissioner of Labor Statistics at BLS, sets a dangerous precedent and undermines the statistical mission of the Bureau.
—Anna Commander, MSNBC Newsweek, 2 Aug. 2025
See All Example Sentences for groundless
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
These radically groundless and unfounded allegations end now.
—Lea Veloso, StyleCaster, 11 Sep. 2025
The totally groundless firing of Dr. Erika McEntarfer, my successor as Commissioner of Labor Statistics at BLS, sets a dangerous precedent and undermines the statistical mission of the Bureau.
—Anna Commander, MSNBC Newsweek, 2 Aug. 2025
See All Example Sentences for groundless
Recent Examples of Synonyms for groundless
Adjective
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There are people who desire to drastically improve the health of our ecosystems who unknowingly struggle with unreasonable expectations.—
Chris McKeown,
Cincinnati Enquirer,
14 Feb. 2026
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Amid those pressures, many people turn to the comfort of a pet – but the expectations for what dogs can bring to our lives are becoming increasingly unreasonable.—
Margret Grebowicz,
Fortune,
13 Feb. 2026
Adjective
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Mafi, of Garden Grove Unified, suggested that fear isn’t unfounded.—
Andre Mouchard,
Oc Register,
15 Feb. 2026
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This is spurious and completely unfounded.—
Letters to the Editor,
The Orlando Sentinel,
14 Feb. 2026
Adjective
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There are so many reasons to be mad; the mostly baseless and endless attacks on higher education, the dismantling of life-saving research, ICE, the subverting of policy that redresses shameful social harms.—
Wendy Nelson Espeland,
Mercury News,
11 Feb. 2026
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The Talmud teaches that Jerusalem was destroyed not only because of hatred, but because of sinat chinam, baseless hatred fueled by moral absolutism.—
Rabbi Bruce D. Forman,
Sun Sentinel,
10 Feb. 2026
Cite this Entry
“Groundless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/groundless. Accessed 18 Feb. 2026.
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