We found 34 dictionaries that define the word successful:

General (29 matching dictionaries)

1. successful: Merriam-Webster.com
2. successful: Oxford Learner's Dictionaries
3. successful: American Heritage Dictionary of the English Language
4. successful: Collins English Dictionary
5. successful: Vocabulary.com
6. Successful, successful: Wordnik
7. successful: Cambridge Advanced Learner's Dictionary
8. successful: Wiktionary
9. successful: Webster's New World College Dictionary, 4th Ed.
10. successful: The Wordsmyth English Dictionary-Thesaurus
11. successful: Infoplease Dictionary
12. successful: Dictionary.com
13. successful: Cambridge Essential American English Dictionary
14. Successful (Drake song), Successful (song), Successful: Wikipedia, the Free Encyclopedia
15. Successful: Online Plain Text English Dictionary
16. successful: Webster's Revised Unabridged, 1913 Edition
17. successful: Rhymezone
18. successful: AllWords.com Multi-Lingual Dictionary
19. successful: Webster's 1828 Dictionary
20. successful: Free Dictionary
21. successful: Mnemonic Dictionary
22. successful: LookWAYup Translating Dictionary/Thesaurus
23. successful: Dictionary/thesaurus
24. successful: Wikimedia Commons US English Pronunciations

Business (1 matching dictionary)

25. successful: Legal dictionary

Medicine (1 matching dictionary)

26. online medical dictionary (No longer online)

Miscellaneous (2 matching dictionaries)

27. Navajo Code Talkers' Dictionary (No longer online)
28. successful: Idioms

Slang (1 matching dictionary)

29. Successful: Urban Dictionary

(Note: See successfully as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Resulting in success; assuring, or promoting, success; accomplishing what was proposed; having the desired effect Similar: eminent, thriving, prosperous, self-made, productive, victorious, roaring, booming, winning, in, more... Opposite: unsuccessful, failed, fruitless, ineffective, unproductive Phrases: Successful Story of a Bright Girl, We Hate It When Our Friends Become Successful, Secrets of a Successful Marriage, Putt's Law and the Successful Technocrat, be successful, more... Adjectives: more, how, less, very, some, total, percent, build, non, adaptive, client ▸ Words similar to successful ▸ Usage examples for successful ▸ Idioms related to successful ▸ Wikipedia articles (New!) ▸ Popular nouns described by successful ▸ Words that often appear near successful ▸ Rhymes of successful ▸ Invented words related to successful