feeble

adjective

1. 1

   lacking strength

   a weak, nerveless fool, devoid of energy and promptitude"- Nathaniel Hawthorne

2. 2

   lacking bodily or muscular strength or vitality

   a feeble old woman

   her body looked sapless

3. 3

   lacking strength or vigor

   damning with faint praise

   faint resistance

4. 4

   pathetically lacking in force or effectiveness

   a feeble excuse

   a lame argument