WordWeb Online

1. Pathetically lacking in force or effectiveness
   "a feeble excuse"
   - lame, wussy
    
2. Lacking strength or vigour
   "feeble efforts"; "a feeble voice"
   - faint
    
3. Lacking bodily or muscular strength or vitality
   "a feeble old woman"
   - decrepit, debile, infirm, rickety, sapless, weak, weakly
    
4. Lacking strength
   - nerveless

Derived forms: feeblest, feebler

See also: feebleness, feebly, frail, powerless, weak

Encyclopedia: Feeble