Aggressive (adjective)

1. Having or showing a tendency to be hostile or violent.
2. Having or showing a willingness to take risks; confident and self-assured.
3. Having or showing a strong desire to succeed or to take control.

Origin:

Late 19th century: from latin aggress- "attacked", from the verb aggredi, from ad- "to" + gradi "step".

Examples:

1. He had an aggressive personality.
2. She has an aggressive driving style.
3. The dog is aggressive towards strangers.
4. The company adopted an aggressive marketing strategy.
5. He had an aggressive approach to making deals.