40 entries under secret topic. ×

1
oracle(difficulty, question, puzzle, subtlety)
1
perplexity(noun, difficulty, question, puzzle)
1
poser(difficulty, question, puzzle, subtlety)
1
problem(difficulty, question, puzzle, obscurity)
1
puzzle(difficulty, question, obscurity, mystery)
1
puzzlement(question, puzzle, obscurity, subtlety)
1
question(difficulty, puzzle, obscurity, subtlety)
1
rebus(difficulty, question, puzzle, subtlety)
1
riddle(difficulty, question, puzzle, obscurity)
1
rune(difficulty, question, puzzle, subtlety)
1
secrecy(difficulty, question, puzzle, obscurity)
1
sphinx(difficulty, question, puzzle, perplexity)
1
stickler(difficulty, question, puzzle, obscurity)
1
stumper(difficulty, question, puzzle, perplexity)
1
subtlety(difficulty, question, puzzle, obscurity)
1
teaser(difficulty, question, puzzle, perplexity)
1
thriller(difficulty, question, puzzle, subtlety)
1
twister(difficulty, question, puzzle, obscurity)
1
whodunit(difficulty, question, puzzle, subtlety)
1
why(difficulty, question, puzzle, obscurity)
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APASmart Define. (2011). mindboggler thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/mindboggler/thesaurus/synonyms
ChicagoSmart Define. 2011. "mindboggler thesaurus" https://smartdefine.org/mindboggler/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2011, mindboggler thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/mindboggler/thesaurus/synonyms>.
MLASmart Define. "mindboggler thesaurus" 23 May 2011. Web. 30 September 2026. <https://smartdefine.org/mindboggler/thesaurus/synonyms>