angry, and behaving in a threatening way; ready to attack
behaving in a very determined and forceful way in order to succeed
"an aggressive businessman"
"an aggressive basketball player"
"he was aggressive and imperious; positive in his convictions"
"an aggressive tumor"
"aggressive acts against another country"
"a belligerent tone"
An aggressive war, as distinguished from mere plundering inroads.
出自： E. A. Freeman