We found 16 dictionaries that define the word littlest:

General (11 matching dictionaries)

1. littlest: Merriam-Webster
2. littlest: Collins English Dictionary
3. littlest: Vocabulary.com
4. Littlest, littlest: Wordnik
5. littlest: Cambridge Advanced Learner's Dictionary
6. littlest: Wiktionary
7. littlest: Dictionary.com
8. littlest: Cambridge Essential American English Dictionary
9. littlest: Rhymezone
10. littlest: FreeDictionary.org
11. littlest: TheFreeDictionary.com

Business (1 matching dictionary)

12. littlest: Legal dictionary

Computing (1 matching dictionary)

13. littlest: Encyclopedia

Medicine (1 matching dictionary)

14. littlest: Merriam-Webster Medical Dictionary

Miscellaneous (1 matching dictionary)

15. littlest: Idioms

Science (1 matching dictionary)

16. littlest: LITTLE EXPLORERS(TM) Picture Dictionary

(Note: See little as well.)

Definitions from WordNet (littlest) ▸ adjective:  having or being distinguished by diminutive size Types: littlest pet shop, littlest angel, littlest elf, littlest wizard, littlest witch, more... Phrases: World's littlest skyscraper, Littlest Pet Shop, The Littlest Hobo, The Littlest Rebel, The Littlest Outlaw, more... ▸ Words similar to littlest ▸ Usage examples for littlest ▸ Idioms related to littlest ▸ Wikipedia articles (New!) ▸ Popular nouns described by littlest ▸ Words that often appear near littlest ▸ Rhymes of littlest ▸ Invented words related to littlest