Duhaime's Law Dictionary Chaste Definition: A person who has never voluntarily had sexual intercourse outside of marriage such as unmarried virgins. Related Terms: Dum Casta, Dum Sola et Casta Vixerit, Adultery An unmarried person who has never voluntarily had sexual intercourse. In other words, an unmarried virgin.In State v Kelley, Justice Gantt of the Supreme Court of Missouri adopted these words:"Chaste is defined as pure from all unlawful commerce of sexes, applied to persons before marriage. It signifies pure from all sexual intercourse, undefiled."More recently, in State v Brionez, Justice Smith of the Supreme Court of Nebraska defined chaste as:"A woman who is chaste is one who has never had unlawful sexual intercourse with a male person."An act of sexual intercourse without her consent and against her will if she is capable of consent does not destroy her chastity."REFERENCES:State v. Brionez, 197 NW 2d 639 (1972)State v Kelley, 90 S.W. 834 at page 838 (1905) Categories & Topics: Duhaime's Ancient Common Law Dictionary Duhaime's Criminal Law Dictionary Duhaime's Trusts, Wills, Estates and Probate Law Dictionary Always looking up definitions? Save time with our search provider (modern browsers only) If you find an error or omission in Duhaime's Law Dictionary, or if you have suggestion for a legal term, we'd love to hear from you!