The Collaborative International Dictionary of English v.0.48:

Pervert \Per*vert"\, v. t. [imp. & p. p. Perverted; p. pr. &
   vb. n. Perverting.] [F. pervertir, L. pervertere,
   perversum; per + vertere to turn. See Per-, and Verse.]
   1. To turn another way; to divert. [Obs.]
      [1913 Webster]

            Let's follow him, and pervert the present wrath.
                                                  --Shak.
      [1913 Webster]

   2. To turn from truth, rectitude, or propriety; to divert
      from a right use, end, or way; to lead astray; to corrupt;
      also, to misapply; to misinterpret intentionally; as, to
      pervert one's words. --Dryden.
      [1913 Webster]

            He, in the serpent, had perverted Eve. --Milton.
      [1913 Webster]

WordNet (r) 3.0 (2006):

perverted
    adj 1: (used of sexual behavior) showing or appealing to bizarre
           or deviant tastes; "kinky sex"; "perverted practices"
           [syn: kinky, perverted]
    2: having an intended meaning altered or misrepresented; "many
       of the facts seemed twisted out of any semblance to reality";
       "a perverted translation of the poem" [syn: distorted,
       misrepresented, perverted, twisted]
    3: deviating from what is considered moral or right or proper or
       good; "depraved criminals"; "a perverted sense of loyalty";
       "the reprobate conduct of a gambling aristocrat" [syn:
       depraved, perverse, perverted, reprobate]

Moby Thesaurus II by Grady Ward, 1.0:

178 Moby Thesaurus words for "perverted":
   AC-DC, abandoned, aberrant, abnormal, abroad, abused, adrift,
   affected, all abroad, all off, all wrong, amiss, amoral,
   amphierotic, apocryphal, artificial, askew, assumed, astray,
   at fault, autoerotic, awry, bad, base, bastard, beside the mark,
   biased, bisexed, bisexual, bogus, brummagem, butch, catachrestic,
   colorable, colored, contaminated, contorted, cooked, corrupt,
   corrupted, counterfeit, counterfeited, debased, debauched,
   decadent, deceptive, defective, defiled, degenerate, degraded,
   delinquent, delusive, depraved, deviant, deviate, deviational,
   deviative, dissolute, distorted, doctored, dressed up, dummy,
   effeminate, eisegetical, embellished, embroidered, errant, erring,
   erroneous, ersatz, evil, evil-minded, factitious, fake, faked,
   fallacious, false, falsified, faultful, faulty, feigned,
   fictitious, fictive, flawed, foul, garbled, gay, heretical,
   heterodox, homoerotic, homosexual, illegitimate, illogical,
   illusory, imitation, immoral, iniquitous, junky, lesbian,
   make-believe, malefic, malevolent, malicious, malign, man-made,
   mannish, misapprehended, misconceived, misconstrued,
   misinterpreted, misquoted, misread, misrepresented, mistaken,
   misunderstood, misused, mock, morally polluted, not right,
   not true, off, off the track, out, outraged, peccant, perverse,
   phony, pinchbeck, polluted, pretended, profligate, pseudo, put-on,
   quasi, queer, reprobate, rotten, sapphic, self-contradictory,
   self-styled, sham, shoddy, simulated, sinful, slanted, so-called,
   soi-disant, spurious, steeped in iniquity, strained, straying,
   supposititious, synthetic, tainted, tin, tinsel, titivated,
   tortured, transvestite, tribadistic, twisted, unauthentic,
   unfactual, ungenuine, unmoral, unnatural, unorthodox, unprincipled,
   unproved, unreal, untrue, vice-corrupted, vitiate, vitiated,
   warped, wicked, wide, wrong