faulty - inscription on blue keyboard key

adulterated amiss awry bad blamable blemished botched broken cracked damaged debased defective deficient distorted erroneous fallacious fallible false faulty flawed frail impaired imperfect imprecise inaccurate inadequate incomplete inexact injured insufficient invalid keyboard lame leaky lemon maimed malformed malfunctioning marred rank sham sick tainted unfit unreliable unsound wanting warped weak wrong