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English definition of “criminal”

criminal

adjective [before noun]     /ˈkrɪm.ɪ.nəl/
B2 relating to crime: criminal activity a criminal act/offence criminal behaviour a criminal investigationLegal and illegal very bad or morally wrong: It's criminal to charge so much for a book. The way we waste this planet's resources is criminal.Morally wrong and evilDishonest criminality     /ˌkrɪm.ɪˈnæl.ɪ.ti/ US  /-ə.t̬i/ noun [U] Crime - general words criminally     /-i/ adverb
(Definition of criminal adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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