youthful

[ yooth-fuh l ]
/ ˈyuθ fəl /

adjective

characterized by youth; young.
of, relating to, or befitting youth: youthful enthusiasm.
having the appearance, freshness, vigor, etc., of youth: She is 60 but her optimism has kept her youthful.
in an early period of existence; early in time.
Physical Geography. (of topographical features) having undergone erosion to a slight extent only.

Origin of youthful

First recorded in 1555–65; youth + -ful

SYNONYMS FOR youthful

1–3 See young.

OTHER WORDS FROM youthful

Example sentences from the Web for youthfulness

British Dictionary definitions for youthfulness

youthful
/ (ˈjuːθfʊl) /

adjective

of, relating to, possessing, or characteristic of youth
fresh, vigorous, or active he's surprisingly youthful for his age
in an early stage of development a youthful culture
Also: young (of a river, valley, or land surface) in the early stage of the cycle of erosion, characterized by steep slopes, lack of flood plains, and V-shaped valleys Compare mature (def. 6), old (def. 18)

Derived forms of youthful

youthfully, adverb youthfulness, noun