いっそう

いっそう

"Even more" or "much more."

Here, "いっそう" (even more) is used to intensify the adjective "美しい" (beautiful), suggesting that the beauty of the scenery increases at night.

この景色は夜になるといっそう美しくなる。

This scenery becomes even more beautiful at night.

In this sentence, "いっそう" (more) emphasizes the extent of growth that is achievable through increased effort.

努力すればするほど、いっそう成長できる。

The more effort you put in, the more you can grow.

Here, "いっそう" (even more) is utilized to convey an increase in the state of confusion after attempting to understand the explanation.

この問題は説明を聞いてもいっそう混乱してしまった。

After hearing the explanation, I ended up being even more confused about this problem.