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.
These online rumors are hardly new—unfounded claims of European bans on wheeled luggage have been circulating for nearly 10 years. Amelia McBride, Travel + Leisure, 18 Sep. 2025 Kennedy is a vaccine skeptic with no medical background, who has promoted a controversial and unfounded theory that links vaccines to autism. Swapna Venugopal Ramaswamy, USA Today, 17 Sep. 2025 After a sweep, officers said no suspicious persons or activity were found and the initial call appeared to be unfounded. Milena Malaver, Miami Herald, 16 Sep. 2025 O’Conner agreed with the defendants that the violation of the First Amendment claim was unfounded and dismissed that part of the lawsuit. Rachel Royster, Fort Worth Star-Telegram, 15 Sep. 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 19 Sep. 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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