Decrepit

decrepit
    adj 1: worn and broken down by hard use; "a creaky shack"; "a
           decrepit bus...its seats held together with friction
           tape"; "a flea-bitten sofa"; "a run-down neighborhood";
           "a woebegone old shack" [syn: {creaky}, {decrepit},
           {derelict}, {flea-bitten}, {run-down}, {woebegone}]
    2: lacking bodily or muscular strength or vitality; "a feeble
       old woman"; "her body looked sapless" [syn: {decrepit},
       {debile}, {feeble}, {infirm}, {rickety}, {sapless}, {weak},
       {weakly}]
    

Decrepit \De*crep"it\, a. [L. decrepitus, perhaps orig., noised
   out, noiseless, applied to old people, who creep about
   quietly; de- + crepare to make a noise, rattle: cf. F.
   d['e]cr['e]pit. See {Crepitate}.]
   Broken down with age; wasted and enfeebled by the infirmities
   of old age; feeble; worn out. "Beggary or decrepit age."
   --Milton.
   [1913 Webster]

         Already decrepit with premature old age. --Motley.
   [1913 Webster]

   Note: Sometimes incorrectly written decrepid.
         [1913 Webster]
    

109 Moby Thesaurus words for "decrepit":
      aged, ancient, anile, antiquated, battered, beat-up, beaten up,
      bedraggled, broken-down, cast-off, childish, childlike, crabbed,
      creaking, creaky, crippled, crumbling, damaged, debilitated,
      decayed, decaying, derelict, deteriorated, dilapidated, disabled,
      disintegrating, doddered, doddering, doddery, doited, doting,
      down-at-heel, elderly, enervated, enfeebled, feeble, flimsy,
      fossilized, fragile, frail, gaga, gerontal, gerontic, haggard,
      impaired, in ruins, incapacitated, infirm, injured, insubstantial,
      marred, mossbacked, moth-eaten, mummylike, old, out of shape,
      palsied, papery-skinned, poor, poorish, quavering, ragged,
      ramshackle, ravaged with age, rickety, rotten, rotten at, ruined,
      ruinous, run to seed, run-down, rusty, seedy, senescent, senile,
      shabby, shaking, shaky, shriveled, slipshod, sloppy, slummy,
      spoiled, stricken in years, superannuated, tacky, threadbare,
      timeworn, tired, tottering, tottery, tumbledown, unfirm, unfit,
      unkempt, unsolid, unsound, unstable, unsturdy, unsubstantial, used,
      wasted, weak, weakened, weakly, withered, wizened, worn,
      worn out