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.
The lesion that was removed is from the part of the brain that causes moments of unfounded fear. Gary Bedore, Kansas City Star, 22 June 2026 The rumors, so far, have proved unfounded. Leah Willingham, Fortune, 21 June 2026 But a former Giants star, who won three World Series championships with the team during its latest dominant run, believes the ire pointed at Vitello is unfounded. Peter Chawaga, Forbes.com, 18 June 2026 Yet Zorn’s fears were unfounded. Thomas A. Dubois, The Conversation, 17 June 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 23 Jun. 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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