also: なおよい
expression, i-adjective (yoi/ii class)
still better; even better
Used to say that something is preferable or more desirable compared to another option, often in the pattern ～より（も）なお良い or ～ならなお良い.
安いに越したことはないが、品質が良ければなお良い。
Cheaper is better, but if the quality is good, it's even better.
早く終わればなお良
If it finishes early, that's still better.