noun, noun or participle which takes 'suru', transitive verb, intransitive verb
Formal, somewhat literary term for deep remorse and resolve to change one's ways. Often used in religious, moral, or legal contexts.
彼は罪を改悛し、新しい人生を歩み始めた。
He repented of his sins and began a new life.
改悛の情を示すことが減刑の条件とされた。
Showing contrition was made a condition for a reduced sentence.