Preternatural

Webster's Dictionary

(a.) Beyond of different from what is natural, or according to the regular course of things, but not clearly supernatural or miraculous; strange; inexplicable; extraordinary; uncommon; irregular; abnormal; as, a preternatural appearance; a preternatural stillness; a preternatural presentation (in childbirth) or labor.

Cyclopedia of Biblical, Theological and Ecclesiastical Literature

stands generally for supernatural, because we suppose that that which is praeter naturam is also supra naturam. Yet the former stands sometimes for unnatural, praeter naturam being the synonym of contraa nacturam. Neither praeternaturale nor supernaturale, or, as some say, supernaturale, is a good Latin word. They are, at least, not to be found in the classics.