Synonyms|782Antonyms|30|Broader|36Narrower|4Related|203

38 entries under conundrum topic. ×

1
challenge(noun, question, puzzle, mystery)
1
chiller(difficulty, question, secret, puzzle, obscurity)
1
cliffhanger(difficulty, question, secret, puzzle, obscurity)
1
difficulty(question, secret, puzzle, obscurity, mystery)
1
grabber(noun, difficulty, challenge, question, problem)
1
inscrutability(difficulty, question, secret, puzzle, obscurity)
1
inscrutableness(difficulty, question, secret, puzzle, obscurity)
1
mindboggler(difficulty, question, secret, puzzle, obscurity)
1
rune(difficulty, question, secret, puzzle, obscurity)
1
secrecy(difficulty, question, secret, puzzle, obscurity)
1
sphinx(difficulty, question, secret, puzzle, obscurity)
1
subtlety(difficulty, question, secret, puzzle, obscurity)
1
thriller(difficulty, question, secret, puzzle, obscurity)
0
bugaboo(noun, challenge, question, puzzle, mystery)
0
cliff-hanger(noun, challenge, question, puzzle, mystery)
0
illustration(noun, challenge, question, puzzle, mystery)
0
query(noun, challenge, doubt, question, uncertainty)
0
sixty-four thousand dollar question(noun, expression, idiom, challenge, question)
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ChicagoSmart Define. 2016. "riddle thesaurus" https://smartdefine.org/riddle/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, riddle thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/riddle/thesaurus/synonyms>.
MLASmart Define. "riddle thesaurus" 1 April 2016. Web. 22 September 2026. <https://smartdefine.org/riddle/thesaurus/synonyms>