1. impossible to atone for or make amends for; unforgivable
Usage: formal

Examples

• The war crimes were considered inexpiable by the international community.
• He believed his betrayal of his friend was an inexpiable sin.
• The judge declared the defendant’s actions inexpiable and sentenced him to life in prison.
• She carried the weight of what she saw as her inexpiable guilt.
• The massacre left an inexpiable stain on the nation’s history.
• His inexpiable offense against humanity could never be forgiven.
• The family viewed the murder of their child as an inexpiable crime.