juvenile delinquency Syllabification: (ju·ve·nile de·lin·quen·cy)Translate juvenile delinquency | into French | into German | into Italian Definition of juvenile delinquency noun the habitual committing of criminal acts or offenses by a young person, especially one below the age at which ordinary criminal prosecution is possible. Derivatives juvenile delinquent noun juvenile delinquency in other Oxford dictionaries Definition of juvenile delinquency in the British & World English dictionary