1. After putting on makeup and high heel shoes, the girl becomes confident and assertive.2. During the battle, despite that one army is greatly outnumbered, they look highly aggressive and ready to kill all their enemies.
 confident and assertive aggressiveconfident and assertive 形容一個人很有自信，很多情況就是殺氣的意思，而 aggressive 則是很有攻擊性的意思，如軍隊的殺氣。
I just heard that the girl I am obsesed with is going to get married.