缄口不言 jiān kǒu bù yán

DEFINITIONS

  1. lips sealed and not saying anything (idiom); fig. to omit mention (of a non-person or embarrassing topic)
  2. to censor

CHARACTERS

缄 jiān seal, close; bind; letter
口 kǒu mouth; open end; entrance, gate
不 bù no, not; un-; negative prefix
言 yán words, speech; speak, say