shuō​bu​shàng​lái

unable to say

  1. to say
    to say; to speak; to talk; to express in words
  2. 不 bu particle
    [potential]
    Used between a verb and its result to show that the action cannot achieve that result; used as the negative form of the 得 de potential construction
  3. [successful completion]
    Used after a verb to indicate the successful completion of an action, especially in the context of being able to respond or capture something (often used in the potential form with 得 de or 不 bu)