激しくなった

became more intense

→ 激しい
phrase Rare #30,710
became more intense Used when something such as weather, movement, or competition increases in intensity or severity.
JA: 風がだんだん激しくなった。
EN: The wind gradually became more intense.

彼の意地の悪い発言で、講義が一層激しくなった。

His malicious remarks made the lecture even more heated.

やむどころか、嵐はいっそう激しくなった。

Far from letting up, the storm grew even more violent.

競争は激しくなった。

The competition has intensified.