Definition of chaster:
(adj) :
Sexually pure, abstaining from immoral or unlawful sexual intercourse.
(adj) :
Synonym of celibate, abstaining from any sexual intercourse.
(adj) :
Synonym of pure and virtuous, particularly
(adj) :
Synonym of virginal, innocent, having or providing no sexual knowledge or experience.
(adj) :
Synonym of modest, particularly (sexism) in reference to behavior expected of sexually pure women.
(adj) :
(in art, fashion, etc.) Synonym of austere, plain, unextravagant, particularly demure, sexually discreet.