We found 36 dictionaries that define the word impossibility:

General (24 matching dictionaries)

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

Business (9 matching dictionaries)

23. impossibility: Merriam-Webster Legal Dictionary
24. impossibility: Webster's New World Law Dictionary
25. impossibility: Law.com Dictionary
26. Everybody's Legal Dictionary (No longer online)
27. Glossary of Legal Terms (No longer online)
28. Construction Term Glossary (No longer online)
29. Bouvier's Law Dictionary 1856 Edition (No longer online)
30. impossibility: Legal dictionary
31. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

32. Impossibility: Encyclopedia

Medicine (1 matching dictionary)

33. online medical dictionary (No longer online)

Slang (1 matching dictionary)

34. impossibility: Urban Dictionary

(Note: See impossibilities as well.)

Definitions from Wiktionary ( ) ▸ noun:  Something that is impossible. ▸ noun:  (uncountable) The quality of being impossible. ▸ noun:  (obsolete) The state of being unable to do something. Similar: impossibleness, impossible action, incompossibility, imposability, unimaginableness, impossibilism, unimaginability, improbability, improbableness, impermissibility, more... Opposite: possibility, likelihood, probability Phrases: logical impossibility, impossibility theorem, legal impossibility, factual impossibility, impossibility of performance, more... Adjectives: physical, utter, practical, absolute, logical, virtual, sheer, near, moral, apparent, obvious Colors:     midnight blue,     phantom black,     obsidian,     nebula pink, more... ▸ Words similar to impossibility ▸ Usage examples for impossibility ▸ Idioms related to impossibility ▸ Wikipedia articles (New!) ▸ Popular adjectives describing impossibility ▸ Words that often appear near impossibility ▸ Rhymes of impossibility ▸ Invented words related to impossibility