不得 Traditional form: 不得 Pinyin (reading): bùdé Definitions: must not may not not to be allowed cannot Characters: 不 - no, not, un-; negative prefix 得 - to obtain, to get, to acquire; suitable, proper; ready Traditional characters: 不 - no, not, un-; negative prefix 得 - to obtain, to get, to acquire; suitable, proper; ready