What's the difference between inexpiable and inexpiably?

Inexpiable

Definition:

• (a.) Admitting of no expiation, atonement, or satisfaction; as, an inexpiable crime or offense.
• (a.) Incapable of being mollified or appeased; relentless; implacable.

Example Sentences:

Inexpiably

Definition:

• (adv.) In an inexpiable manner of degree; to a degree that admits of no atonement.

Example Sentences: