The phrase "unforgivable sin" refers to an action or behavior that is considered so wrong or harmful that it is believed to be impossible to receive forgiveness or salvation afterwards. Full definition
Yes, h - se - xuality is not an unpardonable sin, and it is not unforgiveable sin, because the only unforgivable sin is REJECTING GOD»S Son of whom the Holy Spirit testifies. (religion.blogs.cnn.com)