As nouns the difference between aggressiveness and bellicosity
is that aggressiveness
is the state or quality of being aggressive while bellicosity
is the characteristic of being bellicose.
(uncountable) The state or quality of being aggressive.
(countable) The result or product of being aggressive.
The characteristic of being bellicose.
* 29 February 2012 , Aidan Foster-Carter, BBC News North Korea: The denuclearisation dance resumes [http://www.bbc.co.uk/news/world-asia-17213948]
- The timing is intriguing too. Before this news North Korea was all bellicosity and bluster.