unfounded

adjective

un·​found·​ed ˌən-ˈfau̇n-dəd How to pronounce unfounded (audio)
: 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.
Professional medical societies have banded together to sue the Department of Health and Human Services over Secretary Robert F. Kennedy Jr.’s unfounded restrictions of COVID vaccines and dismissal of vaccine experts. Katherine J. Wu, The Atlantic, 23 Aug. 2025 Another unfounded active shooter scare occurred earlier Thursday at the University of Tennessee in Chattanooga. Meredith Deliso, ABC News, 21 Aug. 2025 The first step: Raise unfounded questions about the safety of vaccines. Stephanie Armour, CNN Money, 18 Aug. 2025 Why does Putin have his sights on the Donbas? Donbas is predominantly Russian speaking and Putin has long made the unfounded accusation that Ukraine has carried out genocide in the region against Russian speakers. Richard Engel, NBC news, 18 Aug. 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 27 Aug. 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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