1. requiring or involving expiation or atonement; relating to or constituting an offering made to atone for sin or wrongdoing
Usage: formal; archaic or literary

Examples

• The priest prescribed a piacular sacrifice to cleanse the community of its transgressions.
• In ancient religions, piacular rituals were performed to seek forgiveness from the gods.
• The monk undertook a piacular journey as penance for his past misdeeds.
• Piacular offerings were central to the temple's ceremonial practices.
• She viewed her charitable work as a piacular act meant to atone for her earlier cruelty.