unfounded

adjective

ˌən-ˈfau̇n-dəd How to pronounce unfounded (audio)
Definition of unfoundednext
as in unreasonable
having no basis in reason or fact the accusation proved to be unfounded

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Antonyms & Near Antonyms

Example Sentences

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.
Recent Examples of unfounded Jensen Huang, the CEO of Nvidia, dismissed AI doomsday scenarios as totally unfounded. — Los Angeles Times, 14 Sep. 2026 In a statement Friday, a spokesperson said the allegations are unfounded and noted that the company prevailed at the trial court level. — Jeff McDonald, San Diego Union-Tribune, 12 Sep. 2026 Honoring an unfounded fear allows it to be healed as the moon and Chiron harmonize. — Usa Today, USA Today, 9 Sep. 2026 Fears that Everton would become the priority in the same way Watford seemed to be at the expense of Udinese, when the Pozzo family had a Premier League and a Serie A club, were unfounded. — Matt Slater, New York Times, 4 Sep. 2026 See All Example Sentences for unfounded
Recent Examples of Synonyms for unfounded
  1. unreasonable
  2. baseless
  3. groundless
  4. unsubstantiated
  5. unwarranted
Adjective
  • Then there’s the Tesseract, which takes the scooter formula and crams it with an almost unreasonable amount of technology.
    — New Atlas, New Atlas, 3 Oct. 2026
  • But several individually reasonable events, viewed together and over time, can tell an unreasonable story.
    — Shahen Minasyan, Forbes.com, 24 Sep. 2026
Definition of unreasonable
Adjective
  • Homeland Security Secretary Markwayne Mullin publicly claimed in July — without providing evidence — that there may be more than 190,000 such voters on California rolls, a claim California officials dismissed as baseless.
    — Kevin Rector, Los Angeles Times, 29 Sep. 2026
  • Supporters of the three men said the allegations were baseless and contradicted by documentary evidence.
    — ABC News, ABC News, 23 Sep. 2026
Definition of baseless
Adjective
  • Ye Khaung Kyaw and the two other men charged in connection with the case have said the accusations against them are groundless.
    — Arkansas Online, Arkansas Online, 24 Sep. 2026
  • Social media in South Korea have been filled with messages stoking fears about safety on Jeju, with some spreading groundless rumors and deriding the island.
    — Hyung-Jin Kim, Los Angeles Times, 27 Aug. 2026
Definition of groundless
Adjective
  • Internal affairs complaints The lawsuit identifies five internal complaints filed against Sumstad between December 2022 and October 2025 and alleges each was dismissed, deemed unsubstantiated or ended in her exoneration.
    — Ben Wheeler, Kansas City Star, 24 Sep. 2026
  • Somehow this unsubstantiated story became internationally known with almost no major media explicitly reporting it, and before the modern version of the internet.
    — Allen Salkin, HollywoodReporter, 14 Sep. 2026
Definition of unsubstantiated
Adjective
  • Critics have argued that much of the data collected is from people who are not suspected of any wrongdoing, amounting to unwarranted surveillance of lawful activities.
    — Carlos E. Castañeda, CBS News, 29 Sep. 2026
  • Given the fact Iger did return to the company, that belief was not unwarranted.
    — Bethy Squires, Vulture, 24 Sep. 2026
Definition of unwarranted

Browse Nearby Words

unfortunately
unfounded
unfree
See all Nearby Words

Cite this Entry

“Unfounded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfounded. Accessed 7 Oct. 2026.

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