A deviant is someone whose behavior falls far outside of society's norms — or a word to describe the behavior itself. For example, a fifty-year-old punk rocker has a deviant appearance, compared to his peers.

That aging punk deviates, or departs from the norm, of people his age. Both deviant and deviate come from the Latin word deviare, meaning "to turn out of the way." Deviants experience this turning away from society, either by choice, or in the case of someone who has harmed another, perhaps by sexual abuse, by being cast out by people who want nothing to do with them.

Definitions of deviant

n a person whose behavior deviates from what is acceptable especially in sexual behavior

degenerate, deviate, pervert
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one who engages in fetishism (especially of a sexual nature)
someone who obtains pleasure from receiving punishment
nympho, nymphomaniac
a woman with abnormal sexual desires
child molester, paederast, pederast
a man who has sex (usually sodomy) with a boy as the passive partner
paedophile, pedophile
an adult who is sexually attracted to children
someone who obtains pleasure from inflicting pain or others
someone who enjoys both sadism and masochism
lech, lecher, letch, satyr
man with strong sexual desires
a person who is whipped or whips himself for sexual gratification
Type of:
miscreant, reprobate
a person without moral scruples

adj markedly different from an accepted norm

deviant ideas”
aberrant, deviate
abnormal, unnatural
not normal; not typical or usual or regular or conforming to a norm