Word Study
self-assertion
CIDE DICTIONARY
self-assertion, n.
The act of asserting one's self, or one's own rights or claims; the quality of being self-asserting. [1913 Webster]
OXFORD DICTIONARY
self-assertion, n. the aggressive promotion of oneself, one's views, etc.
Derivative
self-asserting adj. self-assertive adj. self-assertiveness n.
For further exploring for "self-assertion" in Webster Dictionary Online