Emphasizes that something is even more the case under certain circumstances; often follows a conditional or reason clause.
Since it's raining, I don't want to go out all the more.
彼が謝らないなら、なおのこと許せない。
If he doesn't apologize, I can't forgive him even more.
Kanji form using 尚; less common but still encountered.
Variant with 事 instead of こと; less common.
Rare kanji form using 猶; it is rarely used.
Combination of なお (still, yet) and こと (thing, matter), with the particle の; literally 'the matter of being still more'.