Self-asserting :: Self-asserting (a.) asserting one's self, or one's own rights or claims; hence, putting one's self forward in a confident or assuming manner..
Self-assertion :: Self-assertion (n.) The act of asserting one's self, or one's own rights or claims; the quality of being self-asserting..
Self-assertive :: Self-assertive (a.) Disposed to self-assertion; self-asserting.