boldness vs aggressiveness

boldness and aggressiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
boldness	Yes	No	No	No
aggressiveness	Yes	No	No	No

As nouns, aggressiveness is a hypernym of boldness; that is, aggressiveness is a word with a broader meaning than boldness:

boldness (noun)	aggressiveness (noun)
the trait of being willing to undertake things that involve risk or danger	the quality of being bold and enterprising
the quality of standing out strongly and distinctly	a natural disposition to be hostile
impudent aggressiveness	a feeling of hostility that arouses thoughts of attack