浑然不知 húnránbùzhī to be totally oblivious Origin Definitions Defs Strokes Stroke Words Sentences Sents 浑然 渾然 húnrán completely completely; absolutely; without leaving a trace; usually used with negative verbs like "not knowing" or "not noticing"不知 bùzhī verb not to know to not know; to be unaware of or have no idea about