We found one dictionary that defines the word unforgivable sin:

General (1 matching dictionary)

1. Unforgivable sin: Wikipedia, the Free Encyclopedia

▸ Words similar to unforgivable sin ▸ Usage examples for unforgivable sin ▸ Idioms related to unforgivable sin ▸ Wikipedia articles (New!) ▸ Words that often appear near unforgivable sin ▸ Rhymes of unforgivable sin ▸ Invented words related to unforgivable sin