不是吗 Traditional form: 不是嗎 Pinyin (reading): bùshìma Definitions: isn't that so? Characters: 不 - no, not, un-; negative prefix 是 - to be; indeed, right, yes; okay 吗 - final interrogative particle Traditional characters: 不 - no, not, un-; negative prefix 是 - to be; indeed, right, yes; okay 嗎 - final interrogative particle