as in unreasonable
having no basis in reason or fact
a careful investigation proved that the charges were foundationless
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for foundationless
Adjective
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We're protected from unreasonable searches and seizures.—
Adeola Adeosun,
MSNBC Newsweek,
9 Sep. 2025 -
This is a crude and unreasonable attempt to make the discussion into an all-or-nothing affair.—
Lance Eliot,
Forbes.com,
7 Sep. 2025
Adjective
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Stephen King recently spoke to The Times UK and criticized Hollywood’s superhero movies for often depicting baseless violence.—
Zack Sharf,
Variety,
4 Sep. 2025
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In response to questions from The Tennessean, a Google spokesperson said the accusations are baseless and mischaracterize Google’s security functions.—
Angele Latham,
The Tennessean,
30 Aug. 2025
Adjective
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The letter follows the ouster of CDC director Susan Monarez just one month into her tenure after a disagreement over vaccine policy with Kennedy, a vaccine skeptic who has promoted a controversial and unfounded theory that links vaccines to autism.—
Swapna Venugopal Ramaswamy,
USA Today,
4 Sep. 2025
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Brazil’s top electoral court has already banned Bolsonaro from running in elections until 2030 over abuse of power while in office and casting unfounded doubts on the country’s electronic voting system.—
CNN Money,
CNN Money,
2 Sep. 2025
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Cite this Entry
“Foundationless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/foundationless. Accessed 12 Sep. 2025.
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