ir·remissible \|i, |ir, |iə+\adjective Etymology: Middle French, from Late Latin irremissibilis, from Latin in- in- (II) + Late Latin remissibilis remissible — more at remissible : not remissible: as a.: impossible to overlook or forgive : unpardonable < irremissible crimes > b.: impossible to refrain from or escape : obligatory < irremissible duties > < an irremissible responsibility > • ir·remissibly\“+\adverb