Part of speech:
That cannot or should not be excused; unpardonable; unjustifiable
Impossible to excuse, pardon, or justify:
Find another word for unforgivable. In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for unforgivable, like: inexcusable, unpardonable, unjustifiable, indefensible, inexpiable, wrong, irremissible and forgiveness.