是非不分 shì fēi bù fēn

DEFINITIONS

  1. unable to distinguish right and wrong (idiom)

CHARACTERS

是 shì indeed, yes, right; to be; demonstrative pronoun, this, that
非 fēi not, negative, non-; oppose
不 bù no, not; un-; negative prefix
分 fēn divide; small unit of time etc.