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

Touchland’s Rosewater sanitizer has a mild scent that also gives skin a youthful glow. —Bestreviews, Mercury News, 11 Feb. 2026

Getting forced to play little league baseball is about as emo as youthful tribulations get. —Billie Bugara, Pitchfork, 10 Feb. 2026

For a more youthful, carefree hairstyle, follow Kate Hudson's lead and go for a looser 'do with face-framing tendrils. —Audrey Noble, InStyle, 10 Feb. 2026

Spielberg—youthful, awkward, affable, scarred—was a protean talent who found gold dust in every shot. —Michael O’Donnell, The Atlantic, 10 Feb. 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