An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

Ridiculously senseless, illogical, or untrue; contrary to all reason. → reductio ad absurdum, → absurdity. See also → nonsense.

M.Fr. absurde, from L. absurdus "out of tune; foolish," from surdus "deaf, stupid, inaudible."

Yâvé, literally "unrelated speech," ultimately from *ui-vaka-, from *ui- "apart, away," → transit, + *vaka- "word, speech," → word.

The quality or state of being absurd; something that is absurd.

→ absurd + → -ity.

Logic, Math.: A method of → reasoning in which one assumes some statement to be → true and from that → assumption proceeds to deduce a logical → absurdity and hence to a conclusion that the original assumption must have been → false.

L. reductio ad absurdum "reduction to absurdity," → reduction; → absurd.