adj. chast·er, chast·est
a. Not having experienced sexual intercourse; virginal.
b. Abstaining from sexual relations that are not sanctioned by certain religious laws or moral principles.
c. Abstaining from sexual relations; celibate.
2. Not involving or suggestive of sexual desire or indecency: a chaste kiss; a chaste conversation.
3. Pure or simple in design or style; austere.
[Middle English, from Old French, from Latin castus; see kes- in the Appendix of Indo-European roots.]
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