不着调

Traditional (Taiwan): 不著調

bùzháodiào ㄅㄨˋ ㄓㄠˊ ㄉㄧㄠˋ

    • to be off the mark
    • unreliable or inappropriate in speech or behaviour

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
not in tune
Meaning
Originally singing off-key; describes speech or behaviour that is off, unreliable or inappropriate. Mildly critical.

Sources