We found 31 dictionaries that define the word important:

General (26 matching dictionaries)

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

Art (1 matching dictionary)

25. Shakespeare Glossary (No longer online)

Business (1 matching dictionary)

26. important: Legal dictionary

Miscellaneous (2 matching dictionaries)

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

Slang (1 matching dictionary)

29. Important: Urban Dictionary

(Note: See importants as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Having relevant and crucial value; having import. ▸ adjective:  (obsolete) Pompous; self-important. Similar: eminent, remarkable, noteworthy, of the essence, valuable, significant, crucial, distinguished, historic, cardinal, more... Opposite: trivial, insignificant, negligible, minor, inconsequential Phrases: most important, less important, not important, all important, important person, more... Adjectives: most, very, least, all, highly, unimportant, how, yourself, some, self, quite Colors:     red,     gold,     blue,     black,     purple, more... ▸ Word origin ▸ Words similar to important ▸ Usage examples for important ▸ Idioms related to important ▸ Wikipedia articles (New!) ▸ Popular nouns described by important ▸ Words that often appear near important ▸ Rhymes of important ▸ Invented words related to important