We found 44 dictionaries that define the word insanity:

General (25 matching dictionaries)

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

Business (9 matching dictionaries)

24. insanity: Merriam-Webster Legal Dictionary
25. insanity: Webster's New World Law Dictionary
26. Duhaime's Canadian law dictionary (No longer online)
27. insanity: Law.com Dictionary
28. Everybody's Legal Dictionary (No longer online)
29. Glossary of Legal Terms (No longer online)
30. Bouvier's Law Dictionary 1856 Edition (No longer online)
31. insanity: Legal dictionary
32. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

33. insanity: Encyclopedia

Medicine (6 matching dictionaries)

34. insanity: Merriam-Webster Medical Dictionary
35. Dorland's Illustrated Medical Dictionary (No longer online)
36. Insanity: Merck Manuals
37. online medical dictionary (No longer online)
38. insanity: Medical dictionary
39. Rudy's List of Archaic Medical Terms (No longer online)

Miscellaneous (1 matching dictionary)

40. Brilliant Dream Dictionary (No longer online)

Religion (1 matching dictionary)

41. Insanity: Catholic Encyclopedia

Slang (1 matching dictionary)

42. insanity: Urban Dictionary

(Note: See insanities as well.)

Definitions from Wiktionary ( ) ▸ noun:  The state of being insane; madness. Similar: madness, unsanity, insaneness, lunacy, sanity, craziness, crazedness, saneness, looniness, batshitness, more... Opposite: sanity, rationality, reason Types: kleptomania, pyromania, narcissism, schizophrenia, mania, more... Phrases: Insanity defense, temporary insanity, Moral insanity, insanity plea, legal insanity, more... Adjectives: temporary, moral, depressive, partial, delusional, puerperal, alcoholic, legal, actual, epileptic, chronic ▸ Words similar to insanity ▸ Usage examples for insanity ▸ Idioms related to insanity ▸ Wikipedia articles (New!) ▸ Popular adjectives describing insanity ▸ Words that often appear near insanity ▸ Rhymes of insanity ▸ Invented words related to insanity