■ adjective highly unreasonable, illogical, or inappropriate.
Derivatives
~ity noun ( plural ~ities ).
~ly adverb
Origin
C16: from L. ~us 'out of tune', hence 'irrational'; related to surdus 'deaf, dull'.
ABSURD
Meaning of ABSURD in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004