v. t. & i. [ imp. & p. p. Misbehaved p. pr. & vb. n. Misbehaving. ] To behave ill; to conduct one's self improperly; -- often used with a reciprocal pronoun. [ 1913 Webster ]
a. Guilty of ill behavior; illbred; rude. “A misbehaved and sullen wench.” Shak. [ 1913 Webster ]