The Collaborative International Dictionary of English v.0.48:

nonhuman \nonhuman\ adj.
   not human. Opposite of human. [Narrower terms: anthropoid,
   anthropoidal, apelike; bloodless; dehumanized, unhuman;
   grotesque, monstrous, unnatural; mechanical]
   [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Bloodless \Blood"less\, a. [AS. bl[=o]dle['a]s.]
   1. Destitute of blood, or apparently so; as, bloodless
      cheeks; lifeless; dead.
      [1913 Webster]

            The bloodless carcass of my Hector sold. --Dryden.
      [1913 Webster]

   2. Not attended with shedding of blood, or slaughter; as, a
      bloodless victory. --Froude.
      [1913 Webster]

   3. Without spirit or activity.
      [1913 Webster]

            Thou bloodless remnant of that royal blood ! --Shak.
      [1913 Webster] -- Blood"less*ly, adv. --
      Blood"less*ness, n.
      [1913 Webster]

WordNet (r) 3.0 (2006):

bloodless
    adj 1: destitute of blood or apparently so; "the bloodless
           carcass of my Hector sold"- John Dryden [syn:
           bloodless, exsanguine, exsanguinous]
    2: free from blood or bloodshed; "bloodless surgery"; "a
       bloodless coup" [ant: bloody]
    3: without vigor or zest or energy; "an insipid and bloodless
       young man"
    4: devoid of human emotion or feeling; "charts of bloodless
       economic indicators"
    5: anemic looking from illness or emotion; "a face turned
       ashen"; "the invalid's blanched cheeks"; "tried to speak with
       bloodless lips"; "a face livid with shock"; "lips...livid
       with the hue of death"- Mary W. Shelley; "lips white with
       terror"; "a face white with rage" [syn: ashen, blanched,
       bloodless, livid, white]

Moby Thesaurus II by Grady Ward, 1.0:

161 Moby Thesaurus words for "bloodless":
   achromatic, achromic, anemic, anesthetic, arid, ashen, ashy,
   asthenic, at peace, barren, blah, blank, bled white, cadaverous,
   calm, characterless, chicken, chloranemic, cold, colorless,
   concordant, cowardly, dead, deadly pale, deathly pale, debilitated,
   dim, dimmed, dingy, discolored, dismal, draggy, drearisome, dreary,
   drooping, droopy, dry, dryasdust, dull, dusty, effete, elephantine,
   empty, etiolated, exsanguinated, exsanguine, exsanguineous, fade,
   faded, faint, faintish, fallow, feeble, flabby, flaccid, flat,
   floppy, ghastly, gone, gray, gutless, haggard, halcyon, hard,
   heavy, ho-hum, hollow, hueless, hypochromic, idyllic, imbecile,
   impassible, impotent, inane, inexcitable, insensate, insensitive,
   insipid, jejune, lackluster, languid, languorous, leaden, lifeless,
   limber, limp, listless, livid, low-spirited, lurid, lusterless,
   lustless, marrowless, mat, mealy, muddy, nerveless, neutral,
   orderly, pacific, pale, pale as death, pale-faced, pallid,
   pastoral, pasty, peaceable, peaceful, peacetime, pedestrian,
   piping, pithless, plodding, pointless, poky, ponderous, pooped,
   powerless, quiet, restful, rocky, rubbery, sallow, sapless, serene,
   sickly, sinewless, slack, slow, soft, solemn, spineless,
   spiritless, sterile, stiff, stodgy, strengthless, stuffy,
   superficial, tallow-faced, tasteless, tedious, toneless, tranquil,
   uncolored, unhardened, unlively, unnerved, unstrung, untroubled,
   vapid, wan, washed-out, waterish, watery, waxen, weak, weakly,
   whey-faced, white, wooden