utterly or obviously senseless, illogical, or untrue; contrary to all reason or common sense; laughably foolish or false: an absurd explanation.
noun
2.
the quality or condition of existing in a meaningless and irrational world.
Origin: 1550–60; < Latinabsurdus out of tune, uncouth, ridiculous. See ab-, surd
Related forms
ab·surd·ly, adverb
ab·surd·ness, noun
su·per·ab·surd, adjective
su·per·ab·surd·ly, adverb
su·per·ab·surd·ness, noun
Synonyms 1. irrational, silly, ludicrous, nonsensical. Absurd, ridiculous, preposterous all mean inconsistent with reason or common sense. Absurd means utterly opposed to truth or reason: an absurd claim.Ridiculous implies that something is fit only to be laughed at, perhaps contemptuously: a ridiculous suggestion.Preposterous implies an extreme of foolishness: a preposterous proposal.
(sometimes capital) philosophythe absurd the conception of the world, esp in Existentialist thought, as neither designed nor predictable but irrational and meaningless
[C16: via French from Latin absurdus dissonant, senseless, from ab-1 (intensive) + surdus dull-sounding, indistinct]