The Collaborative International Dictionary of English v.0.48:

disabled \disabled\ adj.
   1. injured so as to be unable to function; as, disabled
      veterans.

   Syn: hors de combat, out of action.
        [WordNet 1.5 +PJC]

   2. unable to function at normal capacity.

   Syn: handicapped, incapacitated.
        [WordNet 1.5 +PJC]

The Collaborative International Dictionary of English v.0.48:

Disable \Dis*a"ble\ (?; 277), v. t. [imp. & p. p. Disabled; p.
   pr. & vb. n. Disabling.]
   1. To render unable or incapable; to destroy the force,
      vigor, or power of action of; to deprive of competent
      physical or intellectual power; to incapacitate; to
      disqualify; to make incompetent or unfit for service; to
      impair.
      [1913 Webster]

            A Christian's life is a perpetual exercise, a
            wrestling and warfare, for which sensual pleasure
            disables him.                         --Jer. Taylor.
      [1913 Webster]

            And had performed it, if my known offense
            Had not disabled me.                  --Milton.
      [1913 Webster]

            I have disabled mine estate.          --Shak.
      [1913 Webster]

   2. (Law) To deprive of legal right or qualification; to
      render legally incapable.
      [1913 Webster]

            An attainder of the ancestor corrupts the blood, and
            disables his children to inherit.     --Blackstone.
      [1913 Webster]

   3. To deprive of that which gives value or estimation; to
      declare lacking in competency; to disparage; to
      undervalue. [Obs.] "He disabled my judgment." --Shak.

   Syn: To weaken; unfit; disqualify; incapacitate.
        [1913 Webster]

WordNet (r) 3.0 (2006):

disabled
    adj 1: incapable of functioning as a consequence of injury or
           illness [syn: disabled, handicapped]
    n 1: people collectively who are crippled or otherwise
         physically handicapped; "technology to help the elderly and
         the disabled" [syn: disabled, handicapped]

Moby Thesaurus II by Grady Ward, 1.0:

45 Moby Thesaurus words for "disabled":
   ausgespielt, bad, burned-out, castrated, crippled, damaged,
   devitalized, disarmed, disqualified, drained, effete, emasculated,
   enervated, enfeebled, eviscerated, exhausted, fatigued, game, halt,
   halting, hamstrung, handicapped, harmed, hobbling, hog-tied,
   impaired, incapacitated, inoperative, invalidated, lame, limping,
   maimed, paralyzed, played out, prostrate, ruined, run-down, sapped,
   spavined, spent, used up, wasted, weakened, worn, worn-out