In‐ex″pi‐a‐ble (?), a. [L. inexpiabilis: cf. F. inexpiable. See In- not, and Expiable.]
1. Admitting of no expiation, atonement, or satisfaction; as, an inexpiable crime or offense. Pomfret.
2. Incapable of being mollified or appeased; relentless; implacable. “Inexpiable hate.” Milton.
They are at inexpiable war with all establishments. Burke.