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

• 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

Elsewhere a fresh sense of femininity took shape as Prada offered a free and fluid way of dressing with unexpected silhouettes and pairings, while Fendi leaned into a youthful and playful energy through use of unexpected color and mixed fabrications. —Samantha Conti, Footwear News, 29 Sep. 2025

DeChambeau hopped and skipped in the air like a youthful cheerleader, kicking his legs in wild directions with each leap. —Brody Miller, New York Times, 29 Sep. 2025

But the balance of the evening belonged to Buettner and his youthful band. —Frank Rajkowski, Twin Cities, 27 Sep. 2025

Shoppers have consistently turned to CeraVe for a more youthful appearance, and this Renewing Night Cream is no exception. —Gabriela Izquierdo, Southern Living, 27 Sep. 2025

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