criminal - definition and synonyms

noun [countable] 

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  1. someone who has committed a crime

    The system is designed to prevent criminals from reoffending.

    a convicted criminal (=one who has been judged guilty in a court of law):

    Convicted criminals should not profit from publicizing their crimes.

    a hardened criminal (=someone who has committed many crimes):

    Most of the offenders are not hardened criminals.