We found 31 dictionaries that define the word conundrum:

General (26 matching dictionaries)

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

Business (1 matching dictionary)

25. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

26. conundrum: Encyclopedia

Medicine (1 matching dictionary)

27. conundrum: Medical dictionary

Slang (2 matching dictionaries)

28. conundrum: Green’s Dictionary of Slang
29. Conundrum: Urban Dictionary

(Note: See conundrums as well.)

Definitions from Wiktionary ( ) ▸ noun:  A difficult question or riddle, especially one using a play on words in the answer. ▸ noun:  A difficult choice or decision that must be made. Similar: enigma, brain-teaser, riddle, quandary, crux, cryptic, carwitchet, cryptic crossword, carwhichet, thing, more... Opposite: riddle, puzzle, mystery Types: paradox, riddle, puzzle, mystery, enigma, quandary, more... Phrases: The Tsuranga Conundrum, Quantum Conundrum, conundrum conflict, opposite of conundrum, more... Adjectives: old, philosophical, interesting, central, moral, apparent, real, logical, legal, insoluble, political Colors:     charcoal,     midnight blue,     burgundy,     olive green,     slate gray, more... ▸ Word origin ▸ Words similar to conundrum ▸ Usage examples for conundrum ▸ Idioms related to conundrum ▸ Wikipedia articles (New!) ▸ Popular adjectives describing conundrum ▸ Words that often appear near conundrum ▸ Rhymes of conundrum ▸ Invented words related to conundrum