Absurd contains the rarer related adjective surd, which, like absurd, derives from the Latin surdus ("deaf, silent, stupid").
Surd can mean "lacking sense or irrational," much like absurd:
While the grandparents might scratch their heads at the Star Wars references, the actors and perhaps some younger parents likely delighted in manic, jumbled and surd structure of the play.
–Patrick Clement, Kiowa County Signal (Greensburg, Kansas), 23 Jan. 2013
Absurd, however, stresses a lack of logical sense or harmonious agreement, of parts (such as a premise and a conclusion) not fitting together. In philosophy, it describes the problem of trying to distill meaning from one's experiences. In A Discourse on Novelty and Creation (1975), Carl R. Hausman writes, "There is an incongruity, an inconsistency, a conflict with a context that appears as lawful, orderly experience. As [Albert] Camus points out, absurdity 'springs from a comparison,' a comparison between two aspects of reality which seem to be out of harmony."
