We found 29 dictionaries that define the word youthful:

General (26 matching dictionaries)

1. youthful: Longman Dictionary of Contemporary English
2. youthful: Merriam-Webster
3. youthful: Oxford Learner's Dictionaries
4. youthful: American Heritage Dictionary of the English Language
5. youthful: Collins English Dictionary
6. youthful: Vocabulary.com
7. Youthful, youthful: Wordnik
8. youthful: Cambridge Advanced Learner's Dictionary
9. youthful: Wiktionary
10. youthful: Webster's New World College Dictionary, 4th Ed.
11. youthful: The Wordsmyth English Dictionary-Thesaurus
12. youthful: Infoplease Dictionary
13. youthful: Dictionary.com
14. youthful: Cambridge Essential American English Dictionary
15. Youthful (publisher): Wikipedia, the Free Encyclopedia
16. Youthful: Online Plain Text English Dictionary
17. youthful: Webster's Revised Unabridged, 1913 Edition
18. youthful: Rhymezone
19. youthful: AllWords.com Multi-Lingual Dictionary
20. youthful: Webster's 1828 Dictionary
21. youthful: Stammtisch Beau Fleuve Acronyms
22. youthful: FreeDictionary.org
23. youthful: Mnemonic Dictionary
24. youthful: TheFreeDictionary.com

Business (1 matching dictionary)

25. youthful: Legal dictionary

Computing (1 matching dictionary)

26. youthful: Encyclopedia

Medicine (1 matching dictionary)

27. online medical dictionary (No longer online)

(Note: See youthfully as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Young or seeming young. ▸ adjective:  Characteristic of young people. Similar: young, vernal, immature, youthlike, fresh-faced, young-hearted, young at heart, young-ladyish, nubile, cute, more... Opposite: aged, elderly, old, mature, senescent Types: adolescent, pre-teen, tween, teen, twenty-something, thirty-something, forty-something, more... Phrases: youthful offenders, youthful offender, youthful looking, youthful exuberance excitement, youthful enthusiasm, more... Colors:     bright yellow,     sky blue,     lime green,     coral,     hot pink, more... ▸ Words similar to youthful ▸ Usage examples for youthful ▸ Idioms related to youthful ▸ Wikipedia articles (New!) ▸ Popular nouns described by youthful ▸ Words that often appear near youthful ▸ Rhymes of youthful ▸ Invented words related to youthful