[syn: aberrant, deviant, deviate]
The Collaborative International Dictionary of English v.0.48:
Deviant \De"vi*ant\, 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]
WordNet (r) 3.0 (2006):
deviant
adj 1: markedly different from an accepted norm; "aberrant
behavior"; "deviant ideas" [syn: aberrant, deviant,
deviate]
n 1: a person whose behavior deviates from what is acceptable
especially in sexual behavior [syn: pervert, deviant,
deviate, degenerate]