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Definition/Meaning

(adjective)

not based on facts or having no foundation;

e.g. The accusations against the company proved to be unfounded after months of investigation.

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Similar Words

Groundless

Nonvalid

Unjustified

Unpersuasive

Unreasonable

Unsubstantiated

Unsupported

Untenable

Unwarranted

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Opposite Words

Actual

Certified

Clear

Cogent

Colorable

Compelling

Conclusive

Confirmed

Convincing

Credible

Decisive

Defensible

Effective

Firm

Forceful

Genuine

Good

Hard

Informed

Just

Justifiable

Justified

Persuasive

Plausible

Real

Sane

Satisfying

Sober

Solid

Strong

Sustainable

Telling

Tenable

True

Valid

Validity

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Related Words

Absurd

Asinine

Brainless

Crackpot

Crazy

Fallacious

False

Fatuous

Flimsy

Foolish

Gratuitous

Harebrained

Ill-advised

Illogical

Implausible

Inconsistent

Insane

Irrational

Lunatic

Mad

Meaningless

Nutty

Preposterous

Senseless

Silly

Simpleminded

Specious

Stupid

Uncalled-for

Unconscionable

Unconvincing

Unnecessary

Unreasoned

Unsound

Untenable

Unwise

Wacky

Weak

Whacky

Wrong

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Comments

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