adj. 1 young, esp. in appearance or manner. 2 having the characteristics of youth (youthful impatience). 3 having the freshness or vigour of youth (a youthful complexion). youthfully adv. youthfulness n.
YOUTHFUL
Meaning of YOUTHFUL in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012