assertiveness vs self-assertiveness

assertiveness and self-assertiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
assertiveness	Yes	No	No	No
self-assertiveness	Yes	No	No	No

As nouns, assertiveness and self-assertiveness are synonyms defined as:

assertiveness and self-assertiveness: aggressive self-assurance; given to making bold assertions

assertiveness (noun)	self-assertiveness (noun)
aggressive self-assurance; given to making bold assertions	aggressive self-assurance; given to making bold assertions