The Collaborative International Dictionary of English v.0.48:

Destroy \De*stroy"\, v. t. [imp. & p. p. Destroyed; p. pr. &
   vb. n. Destroying.] [OE. destroien, destruien, destrien,
   OF. destruire, F. d['e]truire, fr. L. destruere, destructum;
   de + struere to pile up, build. See Structure.]
   1. To unbuild; to pull or tear down; to separate virulently
      into its constituent parts; to break up the structure and
      organic existence of; to demolish.
      [1913 Webster]

            But ye shall destroy their altars, break their
            images, and cut down their groves.    --Ex. xxxiv.
                                                  13.
      [1913 Webster]

   2. To ruin; to bring to naught; to put an end to; to
      annihilate; to consume.
      [1913 Webster]

            I will utterly pluck up and destroy that nation.
                                                  --Jer. xii.
                                                  17.
      [1913 Webster]

   3. To put an end to the existence, prosperity, or beauty of;
      to kill.
      [1913 Webster]

            If him by force he can destroy, or, worse,
            By some false guile pervert.          --Milton.

   Syn: To demolish; lay waste; consume; raze; dismantle; ruin;
        throw down; overthrow; subvert; desolate; devastate;
        deface; extirpate; extinguish; kill; slay. See
        Demolish.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

destroyed \destroyed\ adj.
   1. p. p. of destroy. [Narrower terms: annihilated,
      exterminated, wiped out(predicate); blasted, desolate,
      desolated, devastated, ravaged, ruined, wasted;
      blighted, spoilt; blotted out, obliterate,
      obliterated; demolished, dismantled, razed; done
      for(predicate), kaput(predicate), gone(prenominal), lost,
      finished(predicate); extinguished; ruined, wiped
      out(predicate), impoverished; totaled, wrecked;
      war-torn, war-worn; despoiled, pillaged, raped,
      ravaged, sacked] Also See: damaged. Antonym:
      preserved
      [WordNet 1.5]

   2. destroyed physically or morally.

   Syn: ruined.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

destroyed
    adj 1: spoiled or ruined or demolished; "war left many cities
           destroyed"; "Alzheimer's is responsible for her destroyed
           mind" [ant: preserved]
    2: destroyed physically or morally [syn: destroyed, ruined]

Moby Thesaurus II by Grady Ward, 1.0:

27 Moby Thesaurus words for "destroyed":
   ausgespielt, bankrupt, blasted, blighted, botched, broken,
   desolated, devastated, done for, done in, down-and-out, fallen,
   finished, gone to pot, in ruins, irremediable, kaput, marred,
   overthrown, ravaged, ruined, ruinous, spoiled, spoilt, undone,
   wasted, wrecked