不知所措 bùzhīsuǒcuò to be at a loss Definitions Defs Origin Strokes Stroke Words Sentences Sents 不知 bùzhī verb not to know to not know; to be unaware of or have no idea about所 suǒ particle [relative] Used before a verb to form a noun-like phrase representing the object of the action, meaning "that which" or "what".措 cuò nounadjective to place to place; to arrange; to put in order