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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The Biden-era Justice Department, Washington, D.C., and six states sued in 2021, arguing the alliance violates Section 1 of the Sherman Act, a federal antitrust law that prohibits unreasonable restraints on competition.—
Zach Schonfeld,
The Hill,
30 June 2025 -
The post garnered hundreds of responses with the majority of commenters arguing that her critique of her friend was unreasonable.—
Latoya Gayle,
People.com,
28 June 2025
Adjective
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The findings show a growing generational divide in workplace confidence, and these fears are not necessarily unfounded.—
Aliss Higham,
MSNBC Newsweek,
6 July 2025
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But any concerns that a lack of American support now will carry over to next year’s FIFA World Cup – in which the U.S. will play its group games in Southern California and Seattle – are probably unfounded.—
Ian Nicholas Quillen,
Forbes.com,
5 July 2025
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Cite this Entry
“Foundationless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/foundationless. Accessed 12 Jul. 2025.
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