de·lin·quen·cy 
(dĭ-lĭngkwən-sē, -lĭn-)
(dĭ-lĭngkwən-sē, -lĭn-)n. pl. de·lin·quen·cies
1. Juvenile delinquency.
2. Failure to do what law or duty requires.
3. An offense or misdemeanor; a misdeed.
4. A debt or other financial obligation on which payment is overdue.
adj.
Of or relating to juvenile delinquency: delinquency problems.