Thesaurus

unfounded

adjective

Synonyms and Antonyms of unfounded

having no basis in reason or fact

the accusation proved to be unfounded

Synonyms of unfounded

baseless, foundationless, groundless, invalid, nonvalid, unreasonable, unsubstantiated, unsupported, unwarranted

Words Related to unfounded

illogical, irrational, nonlogical, unconscionable, unsound

fallacious, false, misled, wrong

gratuitous, uncalled-for, unnecessary

flimsy, implausible, misleading, specious, unconvincing, untenable, weak

ill-advised, unreasoned

absurd, asinine, brainless, crackpot, crazy, fatuous, foolish, half-witted, harebrained, meaningless, nonsensical, preposterous, senseless, silly, simpleminded, stupid, unwise

insane, lunatic, mad, nutty, wacky (also whacky)

Near Antonyms of unfounded

certified, validated, verified

confirmed, corroborated

informed, logical, rational

commonsense, sane, sensible, sober, wise

actual, genuine, real, true

clear, cogent, compelling, convincing, credible, persuasive, plausible, satisfying, solid, sound

Antonyms of unfounded

good, hard, just, justified, reasonable, reasoned, substantiated, valid, well-founded, well-grounded

Learn More about unfounded

See words that rhyme with unfounded Dictionary: Definition of unfounded Spanish Central: Translation of unfounded Nglish: Translation of unfounded for Spanish speakers

Seen and Heard

What made you want to look up unfounded? Please tell us where you read or heard it (including the quote, if possible).

show comments

WORD OF THE DAY

perforce

by force of circumstances

Words at Play

Ask the Editors

Word Games