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.
Nonetheless, nasty rumors circulated for a time — most casting unfounded suspicions on Jordan’s family, for little reason beyond their being Indigenous people. Dennis Harvey, Variety, 11 Apr. 2026 Local election officials told the county Board of Supervisors that the complaint was unfounded. ABC News, 8 Apr. 2026 France previously denounced their detention as unjustified and unfounded. Greg Norman-Diamond, FOXNews.com, 7 Apr. 2026 The fear that people might vote twice is unfounded, would be quickly discovered, and thus is non-existent. U T Readers, San Diego Union-Tribune, 7 Apr. 2026 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 17 Apr. 2026.

Kids Definition

unfounded

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

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