弱不禁風 ruò bù jīn fēng

DEFINITIONS

  1. too weak to stand up to the wind (idiom); extremely delicate
  2. fragile state of health

CHARACTERS

弱 ruò weak; fragile, delicate
不 bù no, not; un-; negative prefix
禁 jīn restrict, prohibit, forbid
風 fēng wind; air; manners, atmosphere