不宣而戰 bù xuān ér zhàn

start an undeclared war

Word data

HSK Not in HSK
Frequency Unknown

Definitions

  1. 1. start an undeclared war
  2. 2. open hostilities without declaring war

Characters

Character Meaning
not; no; (negative prefix)
to announce; to declare (publicly); surname Xuan
and; but (not); (indicates contrast)
to fight; fight; battle