嘴巴紧

Traditional (Taiwan): 嘴巴緊

zuǐbajǐn ㄗㄨㄟˇ ˙ㄅㄚ ㄐㄧㄣˇ

    • tight-lipped
    • good at keeping secrets

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
tight mouth
Meaning
Describes someone who is careful about what they say and keeps secrets. Approving. Close to 'tight-lipped'.

Sources