若わかやぐ

godan verb (-gu), intransitive verb

act young; look young

Describes someone behaving or appearing younger than their age, often in a positive or admiring way. Can be used for both actions and appearance.

• 彼かの女じょはいつまでも若わかやいでいる。

  She always acts young.

• その服ふくを着きると若わかやいで見みえる。

  You look younger when you wear that outfit.