[yooth-fuh l]
See more synonyms for youthful on
  1. characterized by youth; young.
  2. of, relating to, or befitting youth: youthful enthusiasm.
  3. having the appearance, freshness, vigor, etc., of youth: She is 60 but her optimism has kept her youthful.
  4. in an early period of existence; early in time.
  5. Physical Geography. (of topographical features) having undergone erosion to a slight extent only.

Origin of youthful

First recorded in 1555–65; youth + -ful
Related formsyouth·ful·ly, adverbyouth·ful·ness, nounpre·youth·ful, adjectiveun·youth·ful, adjectiveun·youth·ful·ly, adverbun·youth·ful·ness, noun

Synonyms for youthful

See more synonyms for on
1–3. See young. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for youthfulness

Contemporary Examples of youthfulness

Historical Examples of youthfulness

  • I must say again that I heartily admire your gallantry and youthfulness.

    A Tale of Two Cities

    Charles Dickens

  • Somehow that accusation of youthfulness was the spur that drove Patricia to victory.

    Miss Pat at Artemis Lodge

    Pemberton Ginther

  • But it is doubtful if in his youthfulness it affected him more than a novelty.

  • But there was a sort of freshness and naivete and youthfulness about her which made him use that adjective.

    We Two

    Edna Lyall

  • Her prettiness is of the prettiest kind—that of which the chief character is youthfulness.

    Our Village

    Mary Russell Mitford

British Dictionary definitions for youthfulness


  1. of, relating to, possessing, or characteristic of youth
  2. fresh, vigorous, or activehe's surprisingly youthful for his age
  3. in an early stage of developmenta youthful culture
  4. 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 valleysCompare mature (def. 6), old (def. 18)
Derived Formsyouthfully, adverbyouthfulness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for youthfulness



1560s, from youth + -ful. Related: Youthfulness.

Online Etymology Dictionary, © 2010 Douglas Harper