In my native language, there is a word that is usually said to exceptional people. It is an adjective that means, for example, that you are so great, you could be made an example for others.
To make it somewhat clear, if I were to make up an english word to match this definition, I would say something like "example-able". The reason I'd choose that is to match the logic of words like "wash-able" which means "something that can be washed."
Usage: "You are ________" or "He is an _______ person".