adjective 1.not to be expiated; not allowing for expiation or atonement: an inexpiable crime.
2.Obsolete. implacable: inexpiable hate.
Origin: 1560–70; <
Latin inexpiābilis. See
in-3,
expiable Related forms in·ex·pi·a·ble·ness, noun
in·ex·pi·a·bly, adverb