celibate

celibate adjective uk/ˈseləbət/ us
Someone who is celibate does not have sex, especially because they have decided to never have sex.

человек, не имеющий интимных отношений
celibacy noun [ U ] uk/ˈseləbəsi/ us
a way of life in which you do not have sex, especially because you have decided not to have sex

воздержание