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

• adolescent
• immature
• juvenile
• young
• youngish

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

Last to arrive are Rick (Walton Goggins) and Chelsea (Aimee Lou Wood), a couple whose attachment to one another is hard to parse given his disinterest in her and her youthful, inextinguishable brightness toward him. —Ben Travers, IndieWire, 11 Feb. 2025

By Matt Fuchs February 6, 2025 9:34 AM EST The skin is more than an expression of your health and youthful good looks. —Matt Fuchs, TIME, 6 Feb. 2025

Still, many see hope in the fact that Madagascar is an extremely youthful country, with half the population under the age of 18. —Julie Bourdin, The Christian Science Monitor, 27 Jan. 2025

Evidence of her youthful spirit arrived at the 2017 Whitney Biennial, where her paintings looked like distant relatives of the other figurations on view. —Alex Greenberger, ARTnews.com, 22 Jan. 2025

Word History

First Known Use

1557, in the meaning defined at sense 1

Phrases Containing youthful

• youthful indiscretion

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