If you describe something as indescribable, haven’t you already described it?

You have. Indescribable is an adjective.

Something indescribable is too intense, extreme or unusual to describe. It’s beyond words. Have you ever noticed how some things are tough or impossible to put into words? Those things are indescribable

Well dang, I hadn’t thought of that.

Yes. It is now described as something that is unable to be described in any word in any language. If we want to be technincal 🙂