难以捉摸 nányǐzhuōmō hard to pin down Origin Definitions Defs Strokes Stroke Words Sentences Sents 难以 難以 nányǐ adverb hard to difficult to do; hard to (predict, imagine, etc.)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.