这不 Traditional form: 這不 Pinyin (reading): zhèbu Definitions: (coll.) As a matter of fact, ... (used to introduce evidence for what one has just asserted) Characters: 这 - this, these; such; here 不 - no, not, un-; negative prefix Traditional characters: 這 - this, these; such; here 不 - no, not, un-; negative prefix