in·ex·pi·a·ble /(ˌ)ɪˈnɛkspiəbəl/
(a.)不能抵償的,不能平息的
In·ex·pi·a·ble a.
1. Admitting of no expiation, atonement, or satisfaction; as, an inexpiable crime or offense.
2. Incapable of being mollified or appeased; relentless; implacable. [Archaic] “Inexpiable hate.”
They are at inexpiable war with all establishments. --Burke.
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inexpiable
adj : incapable of being atoned for