The Collaborative International Dictionary of English v.0.48:

Waste \Waste\, v. t. [imp. & p. p. Wasted; p. pr. & vb. n.
   Wasting.] [OE. wasten, OF. waster, guaster, gaster, F.
   g[^a]ter to spoil, L. vastare to devastate, to lay waste, fr.
   vastus waste, desert, uncultivated, ravaged, vast, but
   influenced by a kindred German word; cf. OHG. wuosten, G.
   w["u]sten, AS. w[=e]stan. See Waste, a.]
   [1913 Webster]
   1. To bring to ruin; to devastate; to desolate; to destroy.
      [1913 Webster]

            Thou barren ground, whom winter's wrath hath wasted,
            Art made a mirror to behold my plight. --Spenser.
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            The Tiber
            Insults our walls, and wastes our fruitful grounds.
                                                  --Dryden.
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   2. To wear away by degrees; to impair gradually; to diminish
      by constant loss; to use up; to consume; to spend; to wear
      out.
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            Until your carcasses be wasted in the wilderness.
                                                  --Num. xiv.
                                                  33.
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            O, were I able
            To waste it all myself, and leave ye none! --Milton.
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            Here condemned
            To waste eternal days in woe and pain. --Milton.
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            Wasted by such a course of life, the infirmities of
            age daily grew on him.                --Robertson.
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   3. To spend unnecessarily or carelessly; to employ
      prodigally; to expend without valuable result; to apply to
      useless purposes; to lavish vainly; to squander; to cause
      to be lost; to destroy by scattering or injury.
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            The younger son gathered all together, and . . .
            wasted his substance with riotous living. --Luke xv.
                                                  13.
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            Full many a flower is born to blush unseen,
            And waste its sweetness on the desert air. --Gray.
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   4. (Law) To damage, impair, or injure, as an estate,
      voluntarily, or by suffering the buildings, fences, etc.,
      to go to decay.
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   Syn: To squander; dissipate; lavish; desolate.
        [1913 Webster]

WordNet (r) 3.0 (2006):

wasted
    adj 1: serving no useful purpose; having no excuse for being;
           "otiose lines in a play"; "advice is wasted words"; "a
           pointless remark"; "a life essentially purposeless";
           "senseless violence" [syn: otiose, pointless,
           purposeless, senseless, superfluous, wasted]
    2: not used to good advantage; "squandered money cannot be
       replaced"; "a wasted effort" [syn: squandered, wasted]
    3: (of an organ or body part) diminished in size or strength as
       a result of disease or injury or lack of use; "partial
       paralysis resulted in an atrophied left arm" [syn:
       atrophied, wasted, diminished] [ant: enlarged,
       hypertrophied]
    4: very thin especially from disease or hunger or cold;
       "emaciated bony hands"; "a nightmare population of gaunt men
       and skeletal boys"; "eyes were haggard and cavernous"; "small
       pinched faces"; "kept life in his wasted frame only by grim
       concentration" [syn: bony, cadaverous, emaciated,
       gaunt, haggard, pinched, skeletal, wasted]

Moby Thesaurus II by Grady Ward, 1.0:

157 Moby Thesaurus words for "wasted":
   Sanforized, ablated, acarpous, arid, atrophied, attenuated,
   ausgespielt, bankrupt, barren, blasted, blighted, brittle, broken,
   burned-out, burnt up, by the board, cadaverous, celibate,
   childless, consumed, corky, corpselike, depleted, desert,
   desiccated, desolate, desolated, destroyed, devastated,
   devitalized, disabled, dissipated, done for, done in,
   down the drain, down-and-out, drained, dried-up, dry, eaten up,
   effete, emacerated, emaciate, emaciated, enervated, enfeebled,
   eroded, eviscerated, exhausted, expended, fallen, fallow, fatigued,
   finished, forfeit, forfeited, fruitless, gaunt, gelded, gone,
   gone to pot, gone to waste, haggard, hollow-eyed, impotent,
   impoverished, in ruins, incapacitated, ineffectual, infecund,
   infertile, irremediable, irretrievable, issueless, jejune, kaput,
   leached, long-lost, lost, lost to, marantic, marasmic, meager,
   menopausal, misspent, nonfertile, nonproducing, nonproductive,
   nonprolific, out the window, overthrown, papery, parched,
   parchmenty, peaked, peaky, pinched, played out, poor, preshrunk,
   puny, ravaged, ruined, ruinous, run to seed, run-down, sapped,
   sear, sere, shriveled, shriveled up, shrunk, shrunken, sine prole,
   skeletal, spent, spoiled, squandered, starved, starveling, sterile,
   sucked dry, tabetic, tabid, teemless, thin, uncultivated, underfed,
   undernourished, undone, unfertile, unfruitful, unplowed,
   unproductive, unprolific, unsown, untilled, used, used up, virgin,
   waste, wasted away, weakened, weazened, weazeny, wilted, withered,
   without issue, wizen, wizen-faced, wizened, worn, worn away,
   worn-out, wraithlike, wrecked, wrinkled