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Showing results for unfounded. Search instead for un-founded.
Definitions

unfounded

[uhn-foun-did] / ʌnˈfaʊn dɪd /
ADJECTIVE
not based on fact
Synonyms
STRONGEST
baseless deceptive fabricated false gratuitous groundless illogical misleading spurious unjustified unproven unsubstantiated untrue untruthful unwarranted
WEAK
fallacious foundationless idle mendacious off-base trumped-up uncalled-for unreal vain without basis without foundation
Antonyms
STRONGEST
called-for correct genuine honest justified real reasonable right true truthful warranted
WEAK
founded proven substantiated supported

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Election experts, voting rights advocates, local elections officials and other California leaders have all dismissed those claims as unfounded and inaccurate.

From Los Angeles Times • Mar. 31, 2026

To support the unfounded allegation, they circulated screenshots on social media showing results from JustDone.

From Barron's • Mar. 30, 2026

The attention on her and her family had included scandalous and unfounded accusations, she said.

From The Wall Street Journal • Mar. 24, 2026

"By shedding light on the biology and ecology of the great white shark, research can help replace unfounded myths with genuine understanding."

From Science Daily • Mar. 11, 2026

Spokesman Manuel de Moya expressed his outrage at the vicious and unfounded accusations of President R6mulo Betancourt of Venezuela.

From "In the Time of the Butterflies" by Julia Alvarez

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.