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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Example Sentences
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Recent Examples of groundless
Putin talks with Iranian foreign minister Russian President Vladimir Putin on Monday told Iranian Foreign Minister Abbas Araqchi in Moscow that aggression against Iran was groundless.
—
Susan Miller, USA Today, 24 June 2025
On Thursday, Gottlieb and Hudson blasted the lawsuit as legally groundless and an effort to silence the actress.
—Daniel S. Levine, People.com, 21 Mar. 2025
The site has a history of promoting groundless conspiracy theories.
—Tom Dreisbach, NPR, 20 Feb. 2025
The rider who smashed his phone insisted in an interview with Chinese state media that the complaint lodged against him was groundless.
—Chris Lau, CNN, 17 Oct. 2024
See All Example Sentences for groundless
Susan Miller, USA Today, 24 June 2025
On Thursday, Gottlieb and Hudson blasted the lawsuit as legally groundless and an effort to silence the actress.
—Daniel S. Levine, People.com, 21 Mar. 2025
The site has a history of promoting groundless conspiracy theories.
—Tom Dreisbach, NPR, 20 Feb. 2025
The rider who smashed his phone insisted in an interview with Chinese state media that the complaint lodged against him was groundless.
—Chris Lau, CNN, 17 Oct. 2024
See All Example Sentences for groundless
Recent Examples of Synonyms for groundless
Adjective
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Many of our technologies are built on the not-unreasonable assumption that openness is good, and that more common knowledge is better.—
Joshua Rothman,
New Yorker,
14 Oct. 2025
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Each side of the issue argues that the other is unreasonable and operating in bad faith.—
Taylor Seely,
AZCentral.com,
9 Oct. 2025
Adjective
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Still, the Epstein saga might have gradually faded from the national consciousness, even in spite of the widespread, unfounded belief that his 2019 suicide in a jail cell while awaiting trial was in fact a murder carried out to prevent him from implicating associates in his crimes.—
Miles Klee,
Rolling Stone,
16 Oct. 2025
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The bull’s sheer size and the location of the hunt spawned unfounded rumors that Brooks had committed game violations.—
Natalie Krebs,
Outdoor Life,
15 Oct. 2025
Adjective
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More severe weather events due to global warming may be driving some of the baseless theories, scientists say.—
Stephanie Armour,
CNN Money,
16 Oct. 2025
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The baseless claims against Dominion caused one of its executives to go into hiding in 2020, and led to numerous defamation lawsuits.—
NPR Washington Desk,
NPR,
9 Oct. 2025
Cite this Entry
“Groundless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/groundless. Accessed 19 Oct. 2025.
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