We found 27 dictionaries that define the word failed:

General (20 matching dictionaries)

1. failed: Merriam-Webster
2. failed: Oxford Learner's Dictionaries
3. failed: American Heritage Dictionary of the English Language
4. failed: Collins English Dictionary
5. failed: Vocabulary.com
6. Failed, failed: Wordnik
7. failed: Cambridge Advanced Learner's Dictionary
8. failed: Wiktionary
9. Failed, failed: Dictionary.com
10. failed: Cambridge Essential American English Dictionary
11. Failed: Wikipedia, the Free Encyclopedia
12. Failed: Online Plain Text English Dictionary
13. failed: Rhymezone
14. Failed: AllWords.com Multi-Lingual Dictionary
15. failed: FreeDictionary.org
16. failed: TheFreeDictionary.com
17. failed: Wikimedia Commons US English Pronunciations
18. failed: Longman Dictionary of Contemporary English

Business (3 matching dictionaries)

19. THE 'LECTRIC LAW LIBRARY'S REFERENCE ROOM (No longer online)
20. failed: Legal dictionary
21. failed: Financial dictionary

Computing (1 matching dictionary)

22. failed: Encyclopedia

Medicine (1 matching dictionary)

23. failed: Merriam-Webster Medical Dictionary

Miscellaneous (1 matching dictionary)

24. failed: Idioms

Slang (1 matching dictionary)

25. failed: Urban Dictionary

(Note: See fail as well.)

Definitions from Wiktionary ( ) ▸ adjective:  unsuccessful ▸ adjective:  Decayed; worn out. ▸ adjective:  Bankrupt. Similar: unsuccessful, attempted, struggle, Refused, tried, failure, unable, manage, sought, succeed, more... Opposite: succeeded, achieved, accomplished, triumphed, prevailed Types: failed state, failed marriage, failed coup, failed business, failed diet, failed drug test, failed school, failed exam, failed relationship, more... Phrases: failed state, failed states, failed back syndrome, failed supernova, chivalry of a failed knight, more... Colors:     gray,     black,     red,     dark gray,     maroon, more... ▸ Words similar to failed ▸ Usage examples for failed ▸ Idioms related to failed ▸ Wikipedia articles (New!) ▸ Popular nouns described by failed ▸ Words that often appear near failed ▸ Rhymes of failed ▸ Invented words related to failed