unatonable
adj/ʌnəˈtəʊnəbəl/
Etymology From un- + atonable.
1
Incapable of being atoned for; inexpiable.
2
Obsolete irreconcilable.
- unatonable matrimony1645 March 14 (Gregorian calendar), John Milton, Tetrachordon: Expositions upon the Foure Chief Places in Scripture, which Treat of Mariage, or Nullities in Mariage. […], London: [s.n.], →OCLC: