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1(of a crime) unpardonable.‘The discussion of the divine Trinity, the issue of irremissible sin and the treatment of Montanist oracles demonstrate that Tertullian re-creates and modifies the ideas of Montanism.’unpardonable, unforgivable, irremissible
2(of an obligation or duty) binding.‘What irremissible demands, according to Canetti, must be made upon the truly representative man?’
Late Middle English from Old French, or from ecclesiastical Latin irremissibilis, from in- ‘not’ + remissibilis (from remittere ‘remit’).
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