47 entries under question topic. ×

1
difficulty(noun, secret, puzzle, obscurity)
1
inscrutability(difficulty, secret, puzzle, perplexity)
1
inscrutableness(difficulty, secret, puzzle, perplexity)
1
mind-boggler(noun, challenge, doubt, problem)
1
mindboggler(difficulty, secret, puzzle, perplexity)
1
mystification(secret, puzzle, obscurity, knot)
1
occult(difficulty, secret, puzzle, perplexity)
1
oracle(difficulty, secret, puzzle, obscurity)
1
poser(noun, difficulty, challenge, secret)
1
puzzle(noun, difficulty, challenge, problem)
1
puzzlement(secret, puzzle, obscurity, knot)
1
puzzler(noun, difficulty, challenge, problem)
1
rebus(difficulty, secret, puzzle, perplexity)
1
riddle(noun, difficulty, challenge, problem)
1
rune(difficulty, secret, puzzle, perplexity)
1
secrecy(difficulty, secret, puzzle, obscurity)
1
secret(problem, puzzle, obscurity, knot)
1
sixty-four-thousand-dollar question(expression, difficulty, secret, puzzle)
1
sphinx(difficulty, secret, puzzle, knot)
1
subtlety(difficulty, secret, puzzle, obscurity)
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APASmart Define. (2013). grabber thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/grabber/thesaurus/synonyms
ChicagoSmart Define. 2013. "grabber thesaurus" https://smartdefine.org/grabber/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2013, grabber thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/grabber/thesaurus/synonyms>.
MLASmart Define. "grabber thesaurus" 19 May 2013. Web. 23 September 2026. <https://smartdefine.org/grabber/thesaurus/synonyms>