?adjective1.utterly or obviously senseless, illogical, or untrue; contrary to all reason or common sense; laughably foolish or false: an absurd explanation.?noun2.the quality or condition of existing in a meaningless and irrational world. 1550?60; < L absurdus out of tune, uncouth, ridiculous. See ab-, surd?Related formsab·surd·ly, adverbab·surd·ness, noun?Synonyms 1. irrational, silly, ludicrous, nonsensical. Absurd, ridiculous, preposterous all mean incons