44 entries under secret topic. ×

8
riddle(noun, difficulty, question, puzzle)
5
rebus(noun, question, puzzle, subtlety)
4
enigma(noun, difficulty, question, puzzle)
4
mystery(noun, difficulty, question, puzzle)
3
anagram
3
logogriph
2
closed book(expression, question, puzzle, subtlety)
2
puzzle(noun, difficulty, question, obscurity)
2
sixty-four-thousand-dollar question(expression, question, puzzle, subtlety)
2
tough nut to crack(expression, idiom, question, puzzle)
1
abstruseness(difficulty, question, puzzle, subtlety)
1
crux(difficulty, question, puzzle, obscurity)
1
cryptogram(difficulty, question, puzzle, obscurity)
1
difficulty(question, puzzle, obscurity, subtlety)
1
grabber(difficulty, question, puzzle, obscurity)
1
inscrutability(difficulty, question, puzzle, subtlety)
1
inscrutableness(difficulty, question, puzzle, subtlety)
1
mindboggler(difficulty, question, puzzle, subtlety)
1
mystification(question, puzzle, obscurity, subtlety)
1
nut to crack(expression, idiom)
<123>
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APASmart Define. (2015). charade thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/charade/thesaurus/synonyms
ChicagoSmart Define. 2015. "charade thesaurus" https://smartdefine.org/charade/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, charade thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/charade/thesaurus/synonyms>.
MLASmart Define. "charade thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/charade/thesaurus/synonyms>