I0239500 (ĭr′ĭ-mĭs′ə-bəl)adj. Not remissible; unpardonable: irremissible sins.ir′re·mis′si·bil′i·ty n.ir′re·mis′si·bly adv.
irremissible
(ˌɪrɪˈmɪsəbəl) adj1. unpardonable; inexcusable2. that must be done, as through duty or obligationˌirreˌmissiˈbility, ˌirreˈmissiblenessnˌirreˈmissiblyadv