一言不发

一言不發
yīyánbùfā
to not say a word (idiom)

CEDICT

Entry Composition

1 一言 yīyán
  1. one sentence
  2. brief remark
2 不 bù
  1. no; not so
  2. (bound form) not; un-
3 发 fā
  1. to send out
  2. to show (one's feeling)
  3. to issue
  4. to develop
  5. to make a bundle of money
  6. classifier for gunshots (rounds)