Is Speed in the Peripheral?

If you only have a small number of root adverbs, speed is highly likely to be early in the set. And then finally, if you have larger adjective classes, it gets a bit out there. Difficulty, easy, difficult, tough. Similarity, unlike qualification, true, untrue, definite. Notification, all many, some position, high, low, near, and then cardinal numbers,. first last, and so on.