不容置喙

bùróngzhìhuì

to not allow others to interfere; to brook no intervention

Wiktionary

Entry Composition

1 不容 bùróng
  1. must not
  2. cannot
  3. to not allow
  4. cannot tolerate
2 置喙 zhìhuì
  1. to offer an opinion
  2. to comment (on the issue)
  3. to have a say (in the matter)