Unfounded — Meaning, Definition & Synonyms

adjective /ˌən-ˈfau̇n-dəd/ un·found·ed

Meaning & Definition of Unfounded

Unfounded (adjective)

  1. lacking a sound basis, groundless, unwarranted

Unfounded (adjective) — Senses, Synonyms & Antonyms

  1. having no basis in reason or fact

    "the accusation proved to be unfounded"

    similar: baseless, foundationless, groundless, invalid, nonvalid, unreasonable, unsubstantiated, unsupported, unwarranted
    related: illogical, irrational, nonlogical, unconscionable, unsound, fallacious, false, misled, wrong, gratuitous, uncalled-for, unnecessary, flimsy, implausible, misleading, specious, unconvincing, untenable, weak, ill-advised, unreasoned, inconsistent, absurd, asinine, brainless, crackpot, crazy, fatuous, foolish, half-witted, harebrained, meaningless, nonsensical, preposterous, senseless, silly, simpleminded, stupid, unwise, insane, mad, nutty, wacky
    opposite: good, hard, just, justified, reasonable, reasoned, substantiated, valid, well-founded, well-grounded
    near: certified, validated, verified, confirmed, corroborated, informed, logical, rational, commonsense, sane, sensible, sober, wise, actual, genuine, real, true, certain, sure, clear, cogent, compelling, convincing, credible, persuasive, plausible, satisfying, solid, sound

Synonyms, Thesaurus & Another Word for Unfounded

The most common words with a similar meaning to Unfounded:

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

Antonyms & Opposite Words for Unfounded

Words with the opposite meaning of Unfounded:

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

Related Words for Unfounded

illogical, irrational, nonlogical, unconscionable, unsound, fallacious, false, misled, wrong, gratuitous, uncalled-for, unnecessary, flimsy, implausible, misleading, specious, unconvincing, untenable, weak, ill-advised, unreasoned, inconsistent, absurd, asinine, brainless, crackpot, crazy, fatuous, foolish, half-witted

Near Antonyms of Unfounded

certified, validated, verified, confirmed, corroborated, informed, logical, rational, commonsense, sane, sensible, sober, wise, actual, genuine, real, true, certain, sure, clear, cogent, compelling, convincing, credible, persuasive, plausible, satisfying, solid, sound

Origin & Etymology of Unfounded

First known use: 1648

Frequently Asked Questions about Unfounded

What does "Unfounded" mean?

"Unfounded" means lacking a sound basis, groundless, unwarranted. As an adjective, it is defined as: lacking a sound basis, groundless, unwarranted.

What is another word for "Unfounded"?

Other words for "Unfounded" include baseless, foundationless, groundless, invalid, nonvalid, unreasonable, unsubstantiated and unsupported. The best synonym depends on which meaning of "Unfounded" you intend.

What are different ways to say "Unfounded"?

There are 52 words and phrases with a similar meaning to "Unfounded". Common alternatives include baseless, foundationless, groundless, invalid, nonvalid, unreasonable, unsubstantiated, unsupported and unwarranted.

What is the opposite of "Unfounded"?

Antonyms of "Unfounded" include good, hard, just, justified, reasonable, reasoned, substantiated and valid. Near antonyms include certified, validated, verified and confirmed.

How do you use "Unfounded" in a sentence?

Examples of "Unfounded" in a sentence: "the accusation proved to be unfounded".

Is "Unfounded" a noun, verb, or adjective?

"Unfounded" is an adjective.

How do you pronounce "Unfounded"?

"Unfounded" is pronounced /ˌən-ˈfau̇n-dəd/ and divided into syllables as un·found·ed.

What is the origin of the word "Unfounded"?

First known use: 1648.