1. [adj]  inconsistent with reason or logic or common sense; "the absurd predicament of seeming to argue that virtue is highly desirable but intensely unpleasant"- Walter Lippman
2. [adj]  completely devoid of wisdom or good sense; "the absurd excuse that the dog ate his homework"; "ask a nonsensical question and get a nonsensical answer"; "a contribution so small as to be laughable"; "it is ludicrous to call a cottage a mansion"; "a preposterous attempt to turn back the pages of history"; "her conceited assumption of universal interest in her rather dull children was ridiculous"

ABSURD is a 6 letter word that starts with A.

1. \Ab*surd"\, a. [L. absurdus harsh-sounding; ab + (prob) a
   derivative fr. a root svar to sound; not connected with surd:
   cf. F. absurde. See {Syringe}.]
   Contrary to reason or propriety; obviously and fiatly opposed
   to manifest truth; inconsistent with the plain dictates of
   common sense; logically contradictory; nonsensical;
   ridiculous; as, an absurd person, an absurd opinion; an
   absurd dream.
         This proffer is absurd and reasonless.   --Shak.
         'This phrase absurd to call a villain great. --Pope.
                                                  --p. 9
   Syn: Foolish; irrational; ridiculous; preposterous;
        inconsistent; incongruous.
   Usage: {Absurd}, {Irrational}, {Foolish}, {Preposterous}. Of
          these terms, irrational is the weakest, denoting that
          which is plainly inconsistent with the dictates of
          sound reason; as, an irrational course of life.
          Foolish rises higher, and implies either a perversion
          of that faculty, or an absolute weakness or fatuity of
          mind; as, foolish enterprises. Absurd rises still
          higher, denoting that which is plainly opposed to
          received notions of propriety and truth; as, an absurd
          man, project, opinion, story, argument, etc.
          Preposterous rises still higher, and supposes an
          absolute inversion in the order of things; or, in
          plain terms, a ``putting of the cart before the
          horse;'' as, a preposterous suggestion, preposterous
          conduct, a preposterous regulation or law.
   

2. \Ab*surd"\ ([a^]b*s[^u]rd"), n.
   An absurdity. [Obs.] --Pope.