dis·loy·al /dɪsˈlɔɪəl/ adjectiveadj PPGUNFAITHFULdoing or saying things that do not support your friends, your country, or the group you belong to 不忠实的,不忠诚的 OPP loyaldisloyal to He felt he had been disloyal to his friends. 他觉得自己对朋友不忠诚。
—disloyalty noun [uncountableU]