The definition of youthful is someone who is young and vigorous, or is something that has the characteristics of someone young such as active and new.
The definition of childish is a person or thing that is silly, immature, like a child or directed at children.
Being in an early period of life or growth; not old
The quality or condition of being juvenile; youthfulness.
(Uncountable) The quality or state of being young.
Find another word for school-age. In this page you can discover 19 synonyms, antonyms, idiomatic expressions, and related words for school-age, like: early years, youthful, old enough to go to school, of school age, childish, young, juvenescence, juvenility, younger days, youth and molester.