不共戴天 bù gòng dài tiān

DEFINITIONS

  1. (of enemies) cannot live under the same sky
  2. absolutely irreconcilable

CHARACTERS

不 bù
HSK 1
no, not; un-; negative prefix
共 gòng
HSK 2
together with, all, total; to share
戴 dài
HSK 4
wear on top; support
天 tiān
HSK 1
sky, heaven; god, celestial