1. relating to or expressing repentance for wrongdoing
2. involving punishment or discipline as an expression of repentance

1. a book of rules for religious penance
Usage: religious

Examples

• The monk wore a penitential robe as a sign of his remorse.
• She performed penitential acts to atone for her mistakes.
• The penitential psalms express deep sorrow for sin.
• His penitential journey included fasting and prayer.
• The priest consulted the penitential for guidance on appropriate penances.
• The penitential season of Lent encourages reflection and repentance.