a situation in which life seems irrational and meaningless
"The absurd is the essential concept and the first truth"
An absurdity.
"The idea of finishing the marathon before breakfast was just an absurd, yet somehow he kept running anyway."
inconsistent with reason or logic or common sense
"the absurd predicament of seeming to argue that virtue is highly desirable but intensely unpleasant"
so unreasonable as to invite derision
"the absurd excuse that the dog ate his homework"
"that's a cockeyed idea"
"ask a nonsensical question and get a nonsensical answer"
"a contribution so small as to be laughable"
"it is ludicrous to call a cottage a mansion"
"a preposterous attempt to turn back the pages of history"
"her conceited assumption of universal interest in her rather dull children was ridiculous"
Contrary to reason or propriety; obviously and flatly opposed to manifest truth; inconsistent with the plain dictates of common sense; logically contradictory; nonsensical; ridiculous; silly.
"The idea that we could finish the entire project by tomorrow is absurd given how much work remains."
The word "absurd" comes from the Latin absurdus, meaning "incongruous" or "out of tune." It is formed by combining ab ("away from") and surdus ("deaf" or "dull-sounding").