[1] : The Collaborative International Dictionary of English v.0.48

deviant \de"viant\, a.
   1. deviating. obs.
      1913 webster

   2. having behavior or characteristics differing from that
      which is normal or expected, especially in an undesirable
      or socially disapproved manner; as, deviant behavior.

   syn: deviate. pjc

[2] : WordNet (r) 2.0

deviant
     adj : markedly different from an accepted norm; "aberrent
           behavior"; "deviant ideas" syn: aberrant
     n : a person whose behavior deviates from what is acceptable
         especially in sexual behavior syn: pervert, deviate,
          degenerate
see also:
aberrant pervert deviate degenerate 

[3] : Moby Thesaurus II by Grady Ward, 1.0

24 moby thesaurus words for "deviant":
   aberrant, abnormal, bent, bizarre, curious, deviate, deviating,
   different, divergent, eccentric, freaky, homosexual, idiosyncratic,
   kinky, odd, offbeat, peculiar, queer, quirky, singular, strange,
   uncommon, unusual, weird

Deviant >> D Words
Deviant, definition of term: Deviant
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