A tendency or disposition to behave aggressively toward others or objects; used to describe aggressive behavior in people or animals.
犬の攻撃性を抑えるためには、早期の社会化としつけが重要だ。
To reduce a dog's aggressiveness, early socialization and training are important.
サッカーの試合で過剰な攻撃性が問題になった。
Excessive aggressiveness became a problem in the soccer match.
彼はストレスのせいで攻撃性が高まっているようだ。
It seems his aggressiveness has increased because of stress.
子どもの攻撃性は家庭環境や教育の影響を受けることがある。
A child's aggressiveness can be influenced by the home environment and upbringing.