illicit
US /ɪˈlɪs.ɪt/
UK /ɪˈlɪs.ɪt/

1.
ilícito, ilegal
forbidden by law, rules, or custom
:
•
The police seized a large quantity of illicit drugs.
La policía incautó una gran cantidad de drogas ilícitas.
•
They were involved in illicit trade.
Estaban involucrados en comercio ilícito.