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We found 35 dictionaries with English definitions that include the word assiduous:
Click on the first link on a line below to go directly to a page where "assiduous" is defined.

General (32 matching dictionaries)

1. assiduous: Merriam-Webster.com [home, info]
2. assiduous: Oxford Dictionaries [home, info]
3. assiduous: American Heritage Dictionary of the English Language [home, info]
4. assiduous: Collins English Dictionary [home, info]
5. assiduous: Vocabulary.com [home, info]
6. assiduous: Macmillan Dictionary [home, info]
7. Assiduous, assiduous: Wordnik [home, info]
8. assiduous: Cambridge Advanced Learner's Dictionary [home, info]
9. assiduous: Wiktionary [home, info]
10. assiduous: Webster's New World College Dictionary, 4th Ed. [home, info]
11. assiduous: V2 Vocabulary Building Dictionary [home, info]
12. assiduous: The Wordsmyth English Dictionary-Thesaurus [home, info]
13. assiduous: Infoplease Dictionary [home, info]
14. Assiduous, assiduous: Dictionary.com [home, info]
15. assiduous: Online Etymology Dictionary [home, info]
16. assiduous: UltraLingua English Dictionary [home, info]
17. Assiduous: Wikipedia, the Free Encyclopedia [home, info]
18. Assiduous: Online Plain Text English Dictionary [home, info]
19. assiduous: Webster's Revised Unabridged, 1913 Edition [home, info]
20. assiduous: Rhymezone [home, info]
21. Assiduous: AllWords.com Multi-Lingual Dictionary [home, info]
22. assiduous: Webster's 1828 Dictionary [home, info]
23. assiduous: Free Dictionary [home, info]
24. assiduous: Hutchinson Dictionaries [home, info]
25. assiduous: Mnemonic Dictionary [home, info]
26. assiduous: WordNet 1.7 Vocabulary Helper [home, info]
27. assiduous: LookWAYup Translating Dictionary/Thesaurus [home, info]
28. assiduous: Dictionary/thesaurus [home, info]
29. assiduous: Wikimedia Commons US English Pronunciations [home, info]
30. assiduous: Worthless Word For The Day [home, info]

Business (1 matching dictionary)

31. assiduous: Legal dictionary [home, info]

Miscellaneous (2 matching dictionaries)

32. assiduous: A Word A Day [home, info]
33. assiduous: Wordcraft Dictionary [home, info]

(Note: See assiduousness for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (assiduous) ▸ adjective:  marked by care and persistent effort ("Her assiduous attempts to learn French") ▸ Also see assiduousness ▸ Word origin ▸ Words similar to assiduous ▸ Usage examples for assiduous ▸ Popular nouns described by assiduous ▸ Words that often appear near assiduous ▸ Rhymes of assiduous ▸ Invented words related to assiduous