We found 29 dictionaries that define the word fortuitous:

General (25 matching dictionaries)

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

Business (1 matching dictionary)

24. fortuitous: Legal dictionary

Medicine (1 matching dictionary)

25. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)

26. fortuitous: A Word A Day

Slang (1 matching dictionary)

27. fortuitous: Urban Dictionary

(Note: See fortuitously as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Happening by chance; coincidental, accidental. ▸ adjective:  Happening by a lucky chance; lucky or fortunate. ▸ adjective:  (law) Happening independently of human will. Similar: fortunate, causeless, uncaused, unintended, happenchance, chance, luckful, lucky, fortuned, felicitous, more... Opposite: accidental, unfortunate, unlucky Phrases: fortuitous event, opposite of fortuitous, fortuitous happenstance, more... Colors:     gold,     emerald,     jade,     sapphire,     amethyst,     ruby,     turquoise,     coral,     lavender,     periwinkle ▸ Word origin ▸ Words similar to fortuitous ▸ Usage examples for fortuitous ▸ Idioms related to fortuitous ▸ Wikipedia articles (New!) ▸ Popular nouns described by fortuitous ▸ Words that often appear near fortuitous ▸ Rhymes of fortuitous ▸ Invented words related to fortuitous