不知好歹 [－－－－]

Jyutping bat1 zi1 hou2 daai2
Pinyin bù zhī hǎo dǎi

Definitions (CC-CEDICT)
  1. unable to differentiate good from bad (idiom)
  2. not to know what's good for one
  3. unable to recognize others' good intentions
Definitions (Wiktionary)
  1. phrase, idiomatic
    cannot tell good from bad; to mistake good for bad; to be unable to see others' good intentions
    (syn.) 不識好歹, 不识好歹
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    这个小孩不知好歹。
    這個小孩不知好歹。
    zhè ge xiǎo hái bù zhī hǎo dǎi 。
    • This child don't know what's coming for him.