一言不发 yī yán bù fā

DEFINITIONS

  1. to not say a word (idiom)

CHARACTERS

一 yī
HSK 1
one; a, an; alone
言 yán
HSK 4
words, speech; speak, say
不 bù
HSK 1
no, not; un-; negative prefix
发 fā
HSK 3
issue, dispatch, send out; hair