youthful

adj. /ˈjuːθ.fəl/ B2

富有朝气的；年轻貌美的；年少的

Typical of young people; having a young fresh appearance.

仙境例句

Alice thought the Duchess looked very youthful in her old pictures, and much less cross.

爱丽丝觉得，公爵夫人在旧画像里显得很年轻，脾气也好得多。