Source : Webster's Revised Unabridged Dictionary (1913)

Feeble \Fee"ble\ (f[=e]"b'l), a. [Compar. {Feebler} (-bl[~e]r);
   superl. {Feeblest} (-bl[e^]st).] [OE. feble, OF. feble,
   flebe, floibe, floible, foible, F. faible, L. flebilis to be
   wept over, lamentable, wretched, fr. flere to weep. Cf.
   {Foible}.]
   1. Deficient in physical strength; weak; infirm; debilitated.

            Carried all the feeble of them upon asses. --2
                                                  Chron. xxviii.
                                                  15.

   2. Wanting force, vigor, or efficiency in action or
      expression; not full, loud, bright, strong, rapid, etc.;
      faint; as, a feeble color; feeble motion. ``A lady's
      feeble voice.'' --Shak.

Feeble \Fee"ble\, v. t.
   To make feble; to enfeeble. [Obs.]

         Shall that victorious hand be feebled here? --Shak.

Source : WordNet®

feeble
     adj 1: pathetically lacking in force or effectiveness; "a feeble
            excuse"; "a lame argument" [syn: {lame}]
     2: lacking strength or vigor; "damning with faint praise";
        "faint resistance"; "feeble efforts"; "a feeble voice"
        [syn: {faint}]
     3: lacking physical strength or vitality; "a feeble old woman";
        "her body looked sapless" [syn: {decrepit}, {debile}, {infirm},
         {sapless}, {weak}, {weakly}]
     4: lacking strength; "a weak, nerveless fool, devoid of energy
        and promptitude"- Nathaniel Hawthorne [syn: {nerveless}]