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English definition of “deviant”

deviant

adjective uk   /ˈdiː.vi.ənt/ (US also deviate) us  
describes a person or behaviour that is not usual and is generally considered to be unacceptableStrange, suspicious and unnatural

deviant

noun [C] uk   /ˈdiː.vi.ənt/ disapproving us  
someone whose behaviour, especially sexual behaviour, is deviant: a sexual deviantStrange, suspicious and unnatural things and people
deviance
noun [U] uk   /-əns/ us  
Strange, suspicious and unnatural
(Definition of deviant from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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