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We found 32 dictionaries with English definitions that include the word lethargic:
Click on the first link on a line below to go directly to a page where "lethargic" is defined.

General (28 matching dictionaries)

1. lethargic: Merriam-Webster.com [home, info]
2. lethargic: Oxford Dictionaries [home, info]
3. lethargic: American Heritage Dictionary of the English Language [home, info]
4. lethargic: Collins English Dictionary [home, info]
5. lethargic: Vocabulary.com [home, info]
6. lethargic: Macmillan Dictionary [home, info]
7. Lethargic, lethargic: Wordnik [home, info]
8. lethargic: Cambridge Advanced Learner's Dictionary [home, info]
9. lethargic: Wiktionary [home, info]
10. lethargic: Webster's New World College Dictionary, 4th Ed. [home, info]
11. lethargic: V2 Vocabulary Building Dictionary [home, info]
12. lethargic: The Wordsmyth English Dictionary-Thesaurus [home, info]
13. lethargic: Infoplease Dictionary [home, info]
14. Lethargic, lethargic: Dictionary.com [home, info]
15. lethargic: UltraLingua English Dictionary [home, info]
16. lethargic: Cambridge Dictionary of American English [home, info]
17. Lethargic: Wikipedia, the Free Encyclopedia [home, info]
18. Lethargic: Online Plain Text English Dictionary [home, info]
19. lethargic: Rhymezone [home, info]
20. Lethargic: AllWords.com Multi-Lingual Dictionary [home, info]
21. lethargic: Webster's 1828 Dictionary [home, info]
22. lethargic: Free Dictionary [home, info]
23. lethargic: Mnemonic Dictionary [home, info]
24. lethargic: WordNet 1.7 Vocabulary Helper [home, info]
25. lethargic: LookWAYup Translating Dictionary/Thesaurus [home, info]
26. lethargic: Dictionary/thesaurus [home, info]

Business (1 matching dictionary)

27. lethargic: Legal dictionary [home, info]

Medicine (2 matching dictionaries)

28. lethargic: Parents' Common Sense Encyclopedia [home, info]
29. Lethargic: Brain Injury [home, info]

Slang (1 matching dictionary)

30. lethargic: Urban Dictionary [home, info]

(Note: See lethargically for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (lethargic) ▸ adjective:  deficient in alertness or activity ("Bullfrogs became lethargic with the first cold nights") ▸ Also see lethargically ▸ Words similar to lethargic ▸ Usage examples for lethargic ▸ Popular nouns described by lethargic ▸ Words that often appear near lethargic ▸ Rhymes of lethargic ▸ Invented words related to lethargic