In*ex"pi*a*ble (?), a. [L. inexpiabilis: cf. F. inexpiable. See In- not, and Expiable.]
Admitting of no expiation, atonement, or satisfaction; as, an inexpiable crime or offense.
Incapable of being mollified or appeased; relentless; implacable.
They are at inexpiable war with all establishments.
© Webster 1913.