Is there any difference in

*1) He is not educated*

*2) He is uneducated* ?

And if there is no, is it possible to make negation with other words by putting **"not"** in front of them?

If you have different negation prefixes (un, mis, dis etc.) and every word has its own own, for example

**"Understand"** can have only **"mis"** (if I am not mistaken).

I was misunderstood

But if I am not sure which prefix I have to use with, for example, **"understand"** can I just put **"not"** before it to have the same sense?

*I was not understood*

The same with **"not educated"** and **"uneducated"**