20 entries under perplexity topic. ×

5
mystery(noun, difficulty, challenge, question, secret)
4
stumper(noun, difficulty, challenge, question, secret)
3
teaser(noun, difficulty, challenge, question, secret)
2
puzzler(noun, difficulty, challenge, question, puzzle)
2
secret(noun, question, puzzle, obscurity)
1
bewitchment(abstruseness, inscrutableness)
1
grabber(noun, difficulty, challenge, question, secret)
1
sphinx(noun, difficulty, question, secret, puzzle)
0
confidential information(expression, abstruseness, inscrutableness)
0
hocuspocus(abstruseness, inscrutableness)
0
magic number(expression, abstruseness, inscrutableness)
0
occultism(abstruseness, inscrutableness)
0
privileged information(expression, abstruseness, inscrutableness)
0
runes(abstruseness, inscrutableness)
0
skeleton in cupboard(expression, idiom, abstruseness, inscrutableness)
0
voodooism(abstruseness, inscrutableness)
0
witchcraft(abstruseness, inscrutableness)
0
witchery(abstruseness, inscrutableness)
0
witching(abstruseness, inscrutableness)
0
wizardry(abstruseness, inscrutableness)
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APASmart Define. (2015). brainteaser thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/brainteaser/thesaurus/synonyms
ChicagoSmart Define. 2015. "brainteaser thesaurus" https://smartdefine.org/brainteaser/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, brainteaser thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/brainteaser/thesaurus/synonyms>.
MLASmart Define. "brainteaser thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/brainteaser/thesaurus/synonyms>