all the more

Adverb

not-comparable

Even more; notably, but even more notably due to additional information, either preceding or following the statement.

Japanese Meaning

いっそう / なお一層 / ますます

After seeing how much effort he had put in, she felt all the more grateful.

彼がどれだけ努力したかを見て、彼女はいっそう感謝の気持ちを抱いた。

Sense（1）

Even more; notably, but even more notably due to additional information, either preceding or following the statement.

Lytle’s progress as a boxer is all the more remarkable when taking into account his unique circumstances.