27 entries under subtlety topic. ×

8
enigma(noun, difficulty, challenge, question, secret)
8
poser(noun, difficulty, challenge, question, secret)
4
stumper(noun, difficulty, challenge, question, secret)
3
teaser(noun, difficulty, challenge, question, secret)
2
closed book(noun, expression, question, secret, puzzle)
2
rebus(noun, question, secret, puzzle)
2
secret(noun, question, puzzle, perplexity, obscurity)
2
sixty-four-thousand-dollar question(noun, expression, question, secret, puzzle)
1
abstruseness(noun, question, secret, puzzle)
1
braintwister(noun, question, secret, puzzle)
1
charade(noun, question, secret, puzzle)
1
chiller(noun, question, secret, puzzle)
1
difficulty(noun, question, secret, puzzle)
1
grabber(noun, difficulty, challenge, question, secret)
1
inscrutability(noun, question, secret, puzzle)
1
inscrutableness(noun, question, secret, puzzle)
1
mindboggler(noun, question, secret, puzzle)
1
mystification(noun, question, secret, puzzle, obscurity)
1
occult(noun, question, secret, puzzle)
1
oracle(noun, question, secret, puzzle)
<12>
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APASmart Define. (2015). brainteaser thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/brainteaser/thesaurus/synonyms
ChicagoSmart Define. 2015. "brainteaser thesaurus" https://smartdefine.org/brainteaser/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, brainteaser thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/brainteaser/thesaurus/synonyms>.
MLASmart Define. "brainteaser thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/brainteaser/thesaurus/synonyms>