The Collaborative International Dictionary of English v.0.48:

Damage \Dam"age\, v. t. [imp. & p. p. Damaged
   (d[a^]m"[asl]jd); p. pr. & vb. n. Damaging
   (d[a^]m"[asl]*j[i^]ng).] [Cf. OF. damagier, domagier. See
   Damage, n.]
   To occasion damage to the soundness, goodness, or value of;
   to hurt; to injure; to impair.
   [1913 Webster]

         He . . . came up to the English admiral and gave him a
         broadside, with which he killed many of his men and
         damaged the ship.                        --Clarendon.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

damaged \damaged\ (d[a^]m"[asl]jd), adj.
   1. changed so as to reduce value, function, or other
      desirable trait; -- usually not used of persons. Opposite
      of undamaged. [Narrower terms: battered, beat-up,
      beaten-up, bedraggled, broken-down, dilapidated,
      ramshackle, tumble-down, unsound; bent, crumpled,
      dented; blasted, rent, ripped, torn; broken-backed;
      burned-out(prenominal), burned out(predicate),
      burnt-out(prenominal), burnt out(predicate); burst,
      ruptured; corroded; cracked, crackled, crazed;
      defaced, marred; hurt, weakened;
      knocked-out(prenominal), knocked out; mangled,
      mutilated; peeling; scraped, scratched;
      storm-beaten] Also See blemished, broken, damaged,
      destroyed, impaired, injured, unsound.
      [WordNet 1.5]

   2. Rendered imperfect by impairing the integrity of some
      part, or by breaking. Opposite of unbroken. [Narrower
      terms: busted; chipped; cracked; crumbled,
      fragmented; crushed, ground; dissolved; fractured;
      shattered, smashed, splintered; split; unkept,
      violated] Also See: damaged, imperfect, injured,
      unsound.

   Syn: broken.
        [WordNet 1.5]

   3. being unjustly brought into disrepute; as, her damaged
      reputation.

   Syn: discredited.
        [WordNet 1.5]

   4. made to appear imperfect; -- especially of reputation; as,
      the senator's seriously damaged reputation.

   Syn: besmirched, flyblown, spotted, stained, sullied,
        tainted, tarnished.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

damaged
    adj 1: harmed or injured or spoiled; "I won't buy damaged
           goods"; "the storm left a wake of badly damaged
           buildings" [ant: undamaged]
    2: being unjustly brought into disrepute; "a discredited
       politician"; "her damaged reputation" [syn: discredited,
       damaged]

Moby Thesaurus II by Grady Ward, 1.0:

76 Moby Thesaurus words for "damaged":
   adulterated, aggravated, blemished, broken, burned, burst, busted,
   checked, chipped, cracked, crazed, cut, defective, deficient,
   deteriorated, embittered, erroneous, exacerbated, fallible, faulty,
   flawed, found wanting, harmed, hurt, immature, impaired, imperfect,
   imprecise, impure, in bits, in pieces, in shards, inaccurate,
   inadequate, incomplete, inexact, injured, irritated, lacerated,
   lacking, makeshift, mangled, marred, mediocre, mixed, mutilated,
   not perfect, off, partial, patchy, rent, ruptured, scalded,
   scorched, shattered, short, sketchy, slashed, slit, smashed, split,
   spoiled, sprung, the worse for, torn, undeveloped, uneven,
   unfinished, unperfected, unsound, unthorough, wanting, weakened,
   worse, worse off, worsened