Aggressiveness is a synonym of pugnaciousness.
As nouns the difference between aggressiveness and pugnaciousness
is that aggressiveness is (uncountable) the state or quality of being aggressive while pugnaciousness is the act or quality of being pugnacious.
aggressiveness
English
Noun
(en-noun)
(uncountable) The state or quality of being aggressive.
(countable) The result or product of being aggressive.
pugnaciousness
English
Noun
(-)
The act or quality of being pugnacious.
Synonyms
* aggressiveness, combativeness, pugnacity
Related terms
* pugnacious
* pugnaciously