misbehave
/ˌmɪsbɪˈheɪv/verb
no obj.
1- (of a person, especially a child) fail to conduct oneself in a way that is acceptable to others; behave badly（尤指小孩）举止失礼; 行为粗鲁。
1.1
- (of a machine) fail to function correctly（机器）出现意外（或不良）情况：
her regularly serviced car was misbehaving.
她定期保养的车出了毛病。
派生词