Kiddies, I only know the definitions I read in the dictionary.
Supernatural means outside the natural order of existence or the visible natural universe, sometimes used to refer to ghosts, spirits, demons, gods, demigods, angels, geni, and the One God of the Bible.
Also, departing from the usual or normal as relates to physics, science, natural order.
Natural, one of the vaguest words ever, means "the inherent qualities of someone or something" and is a very subjective word. One person's idea of natural is anothers artificial crapola.
I'm not a physicist, obviously, (although I got straight As in it in high school and beyond) but I used to teach English writing and grammar and I am a writer who edits the works of other writers. I try not to use words that I don't know the meaning of because that is just silly and pretentious.
I haven't heard any good scientific argument against there being a Supernatural Super Being, nor have I ever heard a good one for it.
I like the idea that you get to choose what the hell you want to believe in, or not believe in as far as anything supernatural. What good would the whole idea of free will, which is a very appealing idea to most people, be without that uncertainty?
I sometimes hope it's deliberate and that God is sitting up there just laughing his ass off at humans and their endless debates about it, because it doesn't really make any difference.
There are good and bad people in both categories, the believers and the non believers. If it made such a huge damn difference for humans to believe in God, I'm sure God would make it possible for there to be definite proof so everyone would have no trouble at all believing. And if he's making it this hard on purpose, well, what an asshole! Who wants to have anything to do with such an asshole of a God anyway?