OXFORD DICTIONARY
vestal, adj. & n.
--adj.
1 chaste, pure.
2 of or relating to the Roman goddess Vesta.
--n.
1 a chaste woman, esp. a nun.
2 Rom. Antiq. a vestal virgin.
vestal virgin Rom. Antiq. a virgin consecrated to Vesta and vowed to chastity, who shared the charge of maintaining the sacred fire burning on the goddess's altar.
ME f. L vestalis (adj. & n.) (as VESTA)
THESAURUS
vestal
Platonic, abstinent, bachelor girl, celibate, continent, feme sole, intact, lone woman, maid, maiden, maiden lady, maidenly, old maid, single girl, spinster, spinstress,
vestal virgin, virgin, virginal
ROGET THESAURUS
vestal
Purity
N
purity, decency, decorum, delicacy, continence, chastity, honesty, virtue, modesty, shame, pudicity, pucelage, virginity,
vestal, virgin, Joseph, Hippolytus, Lucretia, Diana, prude, pure, undefiled, modest, delicate, decent, decorous, virginibus puerisque, simon-pure, chaste, continent, virtuous, honest, Platonic, virgin, unsullied, cherry, as chaste as unsunn'd snow, a soul as white as heaven, 'tis Chastity, my brother, Chastity, to the pure all things are pure.