Definition of aggressive adjective from the Oxford Advanced American Dictionary

Oxford3000

aggressive

adjective
/əˈɡrɛsɪv/
 
 
1 angry, and behaving in a threatening way; ready to attackHe gets aggressive when he's drunk.a dangerous, aggressive dog2 acting with force and determination in order to succeedan aggressive advertising campaignA good salesperson has to be aggressive in today's competitive market. aggressively adverb“What do you want?” he demanded aggressively.aggressively marketed products aggressiveness noun [uncountable]