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;
beyond normal limits; "excessive charges"; "a book of inordinate length"; "his dress stops just short of undue elegance"; "unreasonable demands";
absurd and inappropriate; "the unreasonable nimbus of romance with which she had encircled that man"- Thomas Hardy;
not reasonable; not showing good judgment;
pungent adjectives of disesteem; "gave me a cockamamie reason for not going"; "wore a goofy hat"; "a silly idea"; "some wacky plan for selling more books";