MISBEHAVE is a term used to describe an individual's inappropriate or unacceptable behavior. DISOBEY, TRANSGRESS, SIN, FAIL, MISCONDUCT, ERR, ACTUP, CUTUP, ACTOUT, CARRYON, and GETINTOMISCHIEF are all synonyms of the term MISBEHAVE, each with their own nuances. DISOBEY implies a willful disregard for rules or authority, TRANSGRESS implies a violation of a moral code, SIN implies a religious transgression, FAIL implies a lack of success in meeting expectations, MISCONDUCT implies improper behavior, ERR implies a mistake, ACTUP implies mischievous behavior, CUTUP implies mischievous behavior, ACTOUT implies acting out in a disruptive manner, CARRYON implies continuing misbehavior, and GETINTOMISCHIEF implies engaging in mischievous activities.