unrepentancen.

c1400 Bible (Wycliffite, L.V.) (Harl. 5017) (1850) 1 John v. 16 Gloss. Fynal vnrepentaunce, bi which a man dieth in deedly synne.

a1500 (?c1425) Speculum Sacerdotale (1936) 69 For thyn hardenes and herte of vnrepentaunce, thou makest thy tresoure of wraþe.

1563 Fourme Common Prayer during Tyme of Mortalitie sig. Biv Thy patience beyng..ouercome at the last with our obstinate vnrepentaunce.

1579 W. Fulke Heskins Parl. Repealed in D. Heskins Ouerthrowne 482 With vnreuerence and vnrepentance, they presume against..so high a mysterie.

1623 Bp. J. Hall Contempl. VII. O.T. xix. 500 He might haue auerted it by his prayers; their vnrepentance disabled him.

1661 A. Cowley Vision Cromwell 72 Though the outward unrepentance of his death affoard but small materials for the work of Charity.

a1695 H. Wharton 14 Serm. preach'd Lambeth Chapel (1697) xi. 383 Man continuing in a state of Unrepentance.

1755 Old Remedy New Reviv'd 33 The Danger of Unrepentance is no little one.

1784 C. Crawford Observ. Negro-Slavery 16 Such a consequence will follow their sullen unrepentance as naturally as the night follows the day.

1860 S. Wilberforce Addr. Ordination 45 To all..who do not, by actual unrepentance and unbelief, bar His gracious working.

1882 W. Besant All Sorts of Men II. xxxi. 275 My brother is hardened in his unrepentance.

1917 P. S. O'Hegarty John Mitchel xvii. 124 The unrepentance and defiance of his whole life.

2011 Washington Post (Nexis) 8 Oct. (Style section) c4 I detect a whiff of unrepentance here, and if he's not even feeling bad about being rude to his girlfriend, then that's disrespectful.