Подбор синонимов:
mandatory1, obligatory1, lenient1, unnecessary1, optional1, imperative1, rigueur1, education1, measures1, military1, service1, binding1- compulsory
_a. принудительный; обязательный - compulsory education - compulsory measures - compulsory military service
Syn: binding, de rigueur, imperative, mandatory, obligatory _Ant: lenient, optional, unnecessary