家贼难防 jiāzéinánfáng hard to guard against an inside thief Origin Definitions Defs Strokes Stroke Words Sentences Sents 家贼 家賊 jiāzéi thief within a family A family member who steals from their own household难 難 nán adjective difficult difficult; hard to do; troublesome; not easy; problematic; the opposite of 容易 róngyì防 fáng verb to guard against To take precautions against; to prevent or be on the lookout for something undesirable