absurdity
definition
the quality or state of being ridiculous or unreasonable
example
The absurdity of the situation became apparent when they realized they were arguing over a trivial matter.
synonyms
foolishnessridiculousnessnonsense
word origin — from Latin 'absurdus', meaning 'out of tune, inharmonious', from 'ab-' (away) + 'surdus' (deaf, dull)