UNFOUNDED Synonyms: 92 Similar and Opposite Words

unfounded

adjective

ˌən-ˈfau̇n-dəd

Definition of unfounded next

as in unreasonable

having no basis in reason or fact the accusation proved to be unfounded

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Example Sentences

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Recent Examples of unfounded The common assumption that, one way or another, the strait will reopen when the crisis ends is unfounded. —

Robert Kagan, The Atlantic, 10 May 2026 Although an inquiry by the National Oceanic and Atmospheric Administration was closed, stating that the allegation of his removal and transport of the whale head was unfounded, the absence of a detailed public explanation still leaves the ethical questions unresolved. —

Sam Zeveloff, STAT, 9 May 2026 The vitriol my grandpa endured is deeply unfounded. —

Chicago Tribune, 8 May 2026 And unfortunately, as is the case with unfounded claims -- the damage starts the moment an accusation is filed, long before any facts are examined. —

Armando Salguero Outkick, FOXNews.com, 6 May 2026 See All Example Sentences for unfounded

Recent Examples of Synonyms for unfounded

Adjective

Sterling failed to live up to unreasonable expectations created by his huge contract, which quickly became a millstone.

— Liam Twomey, New York Times, 15 May 2026
The construction strikes many locals as both unreasonable and unstoppable.

— Rachel Monroe, New Yorker, 14 May 2026