不可捉摸 bùkězhuōmō unfathomable Origin Definitions Defs Strokes Stroke Words Sentences Sents 不可 bùkě auxiliaryadjective cannot to be unable to; to be impossible捉摸 zhuōmō adjective to fathom to fathom; to make sense of; to grasp. Often used in the negative to indicate that something is unpredictable or hard to guess.