姑息養奸 gū xī yǎng jiān

DEFINITIONS

  1. to tolerate is to nurture an evildoer (idiom); spare the rod and spoil the child

CHARACTERS

姑 gū
HSK 5
father's sister; husband's mother
息 xī
HSK 2
rest, put stop to, end, cease
養 yǎng raise, rear, bring up; support
奸 jiān crafty, villainous, false