infirm infirm /ɪnˈfɝːm/

adjective

1. Lacking firmness of will, character or purpose  ( infirm )
   lacking firmness of will, character or purpose
    Infirm of purpose; give me the daggers
   infirm of purpose; give me the daggers
   
2. Lacking bodily or muscular strength or vitality  ( debile [Archaic] , decrepit , feeble , infirm , rickety , sapless , weak , weakly )
   lacking bodily or muscular strength or vitality
    A feeble old woman
   a feeble old woman
    Her body looked sapless
   her body looked sapless