骨软筋酥 gǔruǎnjīnsū to be unnerved Origin Definitions Defs Strokes Stroke Words Sentences Sents 骨 gǔ noun bone bone; the hard tissue that forms the skeleton of humans and vertebrate animals软 軟 ruǎn adjective weak weak; feeble; lacking physical strength or energy筋 jīn adjective tendon tendon; sinew; ligament酥 sū limp weak; limp; soft and numb, as if having no strength in one's limbs