[ab-surd, -zurd
utterly or obviously senseless, illogical, or untrue; contrary to all reason or common sense; laughably foolish or false: an absurd explanation.
the quality or condition of existing in a meaningless and irrational world.

"The absurd is the essential concept and the first truth"--Albert Camus

Absurdism is a philosophy stating that the efforts of humanity to find inherent meaning in the universe ultimately fail (and hence are absurd), because no such meaning exists, at least in relation to the individual.