师出无名 shī chū wú míng

DEFINITIONS

  1. lit. to go to war without just cause (idiom)
  2. to act without justification

CHARACTERS

师 shī
HSK 1
teacher, master, specialist
出 chū
HSK 1
go out, send out; stand; produce
无 wú
HSK 4
negative, no, not; KangXi radical 71
名 míng
HSK 1
name, rank, title, position