WordNet sense 1 (turned or twisted toward one side):

askew, cockeyed, lopsided, skew-whiff, wonky

WordNet sense 2 (having or marked by bends or angles; not straight or aligned):

crooked, crooked

WordNet sense 3 (not functioning properly):

amiss, haywire, wrong

WordNet sense 4 (not performing or able to perform its regular function):

nonfunctional, malfunctioning