We found 39 dictionaries that define the word insoluble:

General (26 matching dictionaries)

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

Art (1 matching dictionary)

25. Insoluble: Health & Beauty Glossary

Business (1 matching dictionary)

26. insoluble: Legal dictionary

Computing (1 matching dictionary)

27. insoluble: Encyclopedia

Medicine (5 matching dictionaries)

28. insoluble: Merriam-Webster Medical Dictionary
29. Dorland's Illustrated Medical Dictionary (No longer online)
30. online medical dictionary (No longer online)
31. Hepatitis C Information Central (No longer online)
32. insoluble: Medical dictionary

Miscellaneous (1 matching dictionary)

33. Sound-Alike Words (No longer online)

Science (1 matching dictionary)

34. General Chemistry Online (No longer online)

Slang (1 matching dictionary)

35. insoluble: Urban Dictionary

Tech (2 matching dictionaries)

36. Insoluble: Beauty & Health Glossary
37. Glossary for the Modern Soap Maker (No longer online)

(Note: See insolubility as well.)

Definitions from Wiktionary ( ) ▸ adjective:  (physical chemistry) That cannot be dissolved. ▸ adjective:  That cannot be solved. ▸ adjective:  That cannot be explained. ▸ adjective:  That cannot be broken down or dispersed. ▸ noun:  Any substance that cannot be dissolved. Similar: unsolvable, unresolvable, insolvable, indissoluble, hopeless, unsoluble, undissoluble, undissolving, indissolvable, nonsoluble, more... Opposite: soluble, dissolvable, dissoluble Phrases: water insoluble, insoluble fiber, insoluble fibre, cold insoluble globulin, insoluble forms (calcium) oxalate, more... Adjectives: white, precipitate, yellow, solid, crystalline, black, brown, liquid, amorphous, organic, acid Colors:     charcoal,     slate gray,     midnight blue,     deep indigo,     obsidian, more... ▸ Word origin ▸ Words similar to insoluble ▸ Usage examples for insoluble ▸ Idioms related to insoluble ▸ Wikipedia articles (New!) ▸ Popular adjectives describing insoluble ▸ Popular nouns described by insoluble ▸ Words that often appear near insoluble ▸ Rhymes of insoluble ▸ Invented words related to insoluble