(UN-1 12.)
1754. Warburton, Bolingbrokes Philos., ii. 67. Which, however, they were ready to distinguish from the Unnaturalism (if we may so term it) of ranker Atheism.
1840. T. Gordon, trans. W. Menzels Ger. Lit., I. 35. The writings of [our nation] have a tinge of supernaturalism or unnaturalism; something strange, ghost-like, and ill-suited for this world.
1889. W. D. Howells, in Harpers Mag., Nov., 963/1. French naturalism is better at its worst than French unnaturalism at its best.