crazy

insane kooky mad nuts nutty silly wacky

ape berserk cuckoo lunatic potty psycho screwball

barmy bats in the belfry batty bonkers cracked crazed daft delirious demented deranged dingy dippy erratic flaky flipped flipped-out freaked-out fruity idiotic mad as a March hare mad as a hatter maniacal mental moonstruck nutty as fruitcake of unsound mind out of one's mind out of one's tree out to lunch round the bend screw loose screwy touched unbalanced unglued unhinged unzipped

balanced calm collected rational reasonable sane sound

realistic responsible sensible

absurd bizarre foolish goofy insane irresponsible ludicrous odd outrageous preposterous ridiculous silly strange weird

eccentric loony wild

balmy beyond all reason cockeyed derisory fatuous foolhardy half-baked harebrained idiotic ill-conceived impracticable imprudent inane inappropriate nonsensical out of all reason peculiar puerile quixotic senseless short-sighted unworkable

logical normal rational reasonable sensible usual

balanced believeable realistic responsible sane

hysterical mad passionate

eager keen wild

ardent beside oneself devoted enamored fanatical smitten zealous

unenthusiastic