‘Immitigable’ – this and many other weird neologisms capture the perverse autodidacticism of Rolfe and his martyrs. 1576 What cause was there..that the malice of my minde should be immitigable? A. Fleming, translation of Cicero in Panoplie of Epistles 19 a1780 Did she mitigate these immitigable, these iron-hearted Men? v. 308 1814 He..on his flesh..inflicts Fierce vengeance with immitigable hand. 214 1831 For four or five days and nights the pain was immitigable.