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unfounded

adjective

un·​found·​ed ˌən-ˈfau̇n-dəd How to pronounce unfounded (audio)
Synonyms of unfoundednext
: lacking a sound basis : groundless, unwarranted
an unfounded accusation

Examples of unfounded in a Sentence

the accusation proved to be unfounded
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
At least 10 of the crashes were unfounded, according to Thompson. Noe Padilla, IndyStar, 1 Dec. 2025 Golesh himself even confirmed the reports of him accepting the Arkansas job were unfounded on Saturday. Michael Gallagher, MSNBC Newsweek, 30 Nov. 2025 Psychology apps abound in online stores, often marketed with grand but unfounded efficacy claims. Big Think, 27 Nov. 2025 Defense attorney Jeff Wozniak, representing Guimarin and appearing for Pennington, pushed back, describing Baker’s characterization of the plea deal as unfounded. Ryan MacAsero, Mercury News, 25 Nov. 2025 See All Example Sentences for unfounded

Word History

First Known Use

1648, in the meaning defined above

Time Traveler
The first known use of unfounded was in 1648

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Cite this Entry

“Unfounded.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unfounded. Accessed 8 Dec. 2025.

Kids Definition

unfounded

adjective
un·​found·​ed ˌən-ˈfau̇n-dəd How to pronounce unfounded (audio)
ˈən-
: lacking a sound base : groundless
unfounded suspicions

More from Merriam-Webster on unfounded

Last Updated: - Updated example sentences
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