1 : markedly different from an accepted norm; "aberrant behavior"; "deviant ideas"
2 : having no intelligible meaning; "nonsense syllables"; "a nonsensical jumble of words"
3 : ludicrous, foolish; "wore a goofy hat"; "a silly idea"; "some wacky plan for selling more books"
4 : conspicuously or grossly unconventional or unusual; "restaurants of bizarre design--one like a hat, another like a rabbit"; "famed for his eccentric spelling"; "a freakish combination of styles"; "his off-the-wall antics"; "the outlandish clothes of teenagers"; "outre and affected stage antics"
5 : informal or slang terms for mentally irregular; "it used to drive my husband balmy"
nom
1 : one whose behavior departs substantially from the norm of a group
