/ ˈdiːviənt; NAmE / adjective
different from what most people consider to be normal and acceptable :
deviant behaviour / sexuality
► de·vi·ant noun :
sexual deviants
► de·vi·ance / -viəns; NAmE /, de·vi·ancy / ˈdiːviənsi; NAmE / noun [ U ]:
a study of social deviance and crime
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WORD ORIGIN
late Middle English : from late Latin deviant- turning out of the way, from the verb deviare , from de- away from + via way.