Agnostic.

Gnostic is an old word for knowledge or understanding. It is often used to refer specifically to divine, holy, or magical knowledge, so it works, but I think it was originally a more generic word.

It is an odd one, when you look at the taxonomy. I gave heard people use it synonymously with atheist or atheism. Usually they are meant distinctly differently.

Agnostic. I am not sure a word meaning "Against knowlege & understanding" fits what people usually mean when they use it.

Words.