penitential (adj.)
- abject
- amendatory
- apologetic
- ascetic
- balancing
- cleansing
- contrite
- counteractive
- expiatory
- humble
- humbled
- lustrative
- melted
- penitent
- penitentiary
- propitiatory
- purgative
- purgatorial
- purifying
- redeeming
- redemptive
- regretful
- reparative
- reparatory
- repentant
- retaliatory
- sheepish
- softened
- sorry
- touched