43 entries under secret topic. ×

1
braintwister(noun, question, puzzle, subtlety)
1
charade(noun, question, puzzle, subtlety)
1
chiller(noun, question, puzzle, subtlety)
1
cliffhanger(noun, difficulty, question, puzzle)
1
crux(noun, difficulty, question, puzzle)
1
difficulty(noun, question, puzzle, subtlety)
1
grabber(noun, difficulty, challenge, question)
1
inscrutability(noun, question, puzzle, subtlety)
1
inscrutableness(noun, question, puzzle, subtlety)
1
mindboggler(noun, question, puzzle, subtlety)
1
mystification(noun, question, puzzle, obscurity)
1
occult(noun, question, puzzle, subtlety)
1
oracle(noun, question, puzzle, subtlety)
1
question(noun, difficulty, puzzle, obscurity)
1
rune(noun, question, puzzle, subtlety)
1
secrecy(noun, difficulty, question, puzzle)
1
sphinx(noun, difficulty, question, puzzle)
1
stickler(noun, difficulty, challenge, question)
1
subtlety(noun, difficulty, question, puzzle)
1
thriller(noun, question, puzzle, subtlety)
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APASmart Define. (2015). brainteaser thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/brainteaser/thesaurus/synonyms
ChicagoSmart Define. 2015. "brainteaser thesaurus" https://smartdefine.org/brainteaser/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, brainteaser thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/brainteaser/thesaurus/synonyms>.
MLASmart Define. "brainteaser thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/brainteaser/thesaurus/synonyms>