A chaste woman is someone who abstains from sexual activity and remains pure. The term 'VESTAL' (6 letters) is often used to describe such a woman, as it refers to the VESTAL Virgins of Ancient Rome, who were priestesses dedicated to the goddess Vesta and were expected to remain chaste for the duration of their service. The plural form of the word, 'vestals' (7 letters), can also be used to refer to a group of chaste women.