I just called my sister's fiancee a?

N-word. Now, he is not Black, but he is an ignorant, uneducated, and non clivlized person. He is White. I almost had a fist fight with him last night at this family party. Do you think it was wrong for me to use the N-word towards him? By the way, I am not racist against any race. I feel as if the N-word can be directed towards any race of un civilized behaviour.