I spent 3 minutes looking up whether nebulochaotic was a real word. The verdict? I don’t know. I read it in a book, which makes me think it is real. But it is not in a dictionary. So not real? But other people have mentioned it. So, real? I guess words become real when we use them.
If, nebulous: hazy, vague, indistinct, or confused.
Then, nebulochaotic: relating to or tending towards haziness, vagueness, or confusion.