Chaste /(chāst)/

Chaste

a.
  1. Pure from unlawful sexual intercourse; virtuous; continent.
    Whose bed is undefiled and chaste pronounced.
  2. Pure in thought and act; innocent; free from lewdness and obscenity, or indecency in act or speech; modest; as, a chaste mind; chaste eyes.
  3. Pure in design and expression; correct; free from barbarisms or vulgarisms; refined; simple; as, a chaste style in composition or art.
    That great model of chaste, lofty, and eloquence, the Book of Common Prayer.
  4. Unmarried. [Obs.]

Phrases & Compounds
Chaste tree
Same as Agnus castus.