垢あか抜ぬける

ichidan verb, intransitive verb

become refined; become polished; become stylish; become sophisticated

Describes a person, appearance, or taste becoming more polished, sophisticated, or free from rustic or crude elements. Often used for someone who has lost a provincial or unsophisticated air.

• 東とう京きょうに住すむようになって、彼かの女じょはずいぶん垢あか抜ぬけた。

  Since she started living in Tokyo, she has become much more refined.

• 垢あか抜ぬけたファッションセンスだね。

  You have a sophisticated fashion sense.