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 character introduced as youthful comic relief became an enduring piece of the series’ optimistic picture of the future. — Daniel Ross Goodman, The Washington Examiner, 30 Oct. 2026

Found in serums and creams, these copper-containing compounds commonly promise smoother, more youthful-looking skin. — Taylor Lane, Flow Space, 28 Oct. 2026

Of course Bass doesn’t see her own evolution as a retreat from her youthful convictions. — Maxwell Adler, Vanity Fair, 28 Oct. 2026

Neither party can be proud of its recent impact on the federal judiciary; the Republicans seek youthful doctrinaires, and the Democrats indulge racial and gender preferences. — George Liebmann, Baltimore Sun, 28 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