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
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
While Russia, China, and North Korea condemned the U.S. strikes, only Russia called the aggression groundless.
—Natalie Neysa Alund, USA Today, 24 June 2025
See All Example Sentences for groundless
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
While Russia, China, and North Korea condemned the U.S. strikes, only Russia called the aggression groundless.
—Natalie Neysa Alund, USA Today, 24 June 2025
See All Example Sentences for groundless
Recent Examples of Synonyms for groundless
Adjective
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The issue is critical because the Fourth Amendment is supposed to protect people from invasive government actions in their homes, shielding them from unreasonable searches and seizures.—
Arkansas Online,
Arkansas Online,
24 Jan. 2026
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Love, in this cultural script, is supposed to feel good most of the time, and that expectation isn’t entirely unreasonable.—
Mark Travers,
Forbes.com,
24 Jan. 2026
Adjective
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Then $1,500 for Noma stateside isn’t entirely unfounded.—
Emily Wilson,
Bon Appetit Magazine,
26 Jan. 2026
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These fears are not unfounded, said Rhiannon Batchelder, a career coach based in Denver.—
Annie Nova,
CNBC,
24 Jan. 2026
Adjective
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This perspective that America’s founders supported insurrectionism is baseless.—
Douglas Letter,
Time,
6 Jan. 2026
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Kyiv has dismissed the allegation as a baseless lie aimed at building a pretext for the Kremlin to push ahead with its war.—
Yuliya Talmazan,
NBC news,
30 Dec. 2025
Cite this Entry
“Groundless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/groundless. Accessed 28 Jan. 2026.
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