youthful

adjective

youth·​ful ˈyüth-fəl 

1

: of, relating to, or characteristic of youth

youthful inexperience

2

: being young and not yet mature

3

: marked by or possessing youth

youthful dancers

4

: having the vitality or freshness of youth : vigorous

my youthful grandparents

5

: having accomplished or undergone little erosion

youthful mountains

youthfully

ˈyüth-fə-lē 

adverb

youthfulness noun

Synonyms of youthful

• young

Examples of youthful in a Sentence

My grandparents are still very youthful.

it's still a youthful nation with a lot of promise and potential

Recent Examples on the Web

The 1990 Tim Burton classic stars a youthful Johnny Depp and Winona Ryder — then still a celebrity couple — in the touching story of an artificial man with blades for hands. — Jennifer Day, Chicago Tribune, 22 Oct. 2026

His youthful face belies his ability to play in one of the most demanding positions on the field, defensive midfield, a spot usually reserved for senior professionals who’ve enjoyed decades of experience. — Ben Church, CNN Money, 22 Oct. 2026

The first time that Andrea Kimi Antonelli, the youthful sensation of this year’s Formula 1 racing season, took part in a Formula 1 Grand Prix weekend was in the summer of 2024. — Sam Knight, New Yorker, 22 Oct. 2026

The guise of a youthful flush In those early episodes, Cathy’s makeup had to mirror her hair’s equally nonthreatening appearance, so a fresh, skin-first look was important. — Katie Gunderman, Allure, 21 Oct. 2026

Word History

First Known Use

1557, in the meaning defined at sense 1

Phrases Containing youthful

• youthful indiscretion

Rhymes for youthful

• untruthful
• truthful

Kids Definition

youthful

adjective

youth·​ful ˈyüth-fəl 

1

: of, relating to, or suitable for youth

2

: being young and not yet mature

3

: having the freshness and energy of youth

youthful grandparents

youthfully

-fə-lē 

adverb

youthfulness noun