なおのこと

expression, adverb

all the more; still more

Emphasizes that something is even more the case under certain circumstances; often follows a conditional or reason clause.

• 雨あめが降ふっているから、なおのこと出でかけたくない。

  Since it's raining, I don't want to go out all the more.

• 彼かれが謝あやまらないなら、なおのこと許ゆるせない。

  If he doesn't apologize, I can't forgive him even more.