A renegade is a person who abandons the religious, political, or philosophical beliefs that he or she used to have, and accepts opposing or different beliefs.
ADJ
离经叛道的;叛逆的;变节的
Renegade is used to describe a member of a group or profession who behaves in a way that is opposed to the normal behaviour or beliefs of that group or profession.
例句
Three men were shot dead by a renegade policeman.3名男子被一个变节警察开枪打死。