47 entries under puzzle topic. ×

1
cliffhanger(difficulty, question, secret, knot)
1
crux(difficulty, question, secret, knot)
1
difficulty(question, secret, obscurity, subtlety)
1
inscrutability(difficulty, question, secret, obscurity)
1
inscrutableness(difficulty, question, secret, obscurity)
1
intricacy(noun, challenge, question, mystery)
1
mind-boggler(noun, challenge, doubt, question, problem)
1
mindboggler(difficulty, question, secret, obscurity)
1
occult(difficulty, question, secret, obscurity)
1
oracle(difficulty, question, secret, obscurity)
1
puzzler(noun, difficulty, challenge, question, problem)
1
question(difficulty, secret, obscurity, knot)
1
rebus(difficulty, question, secret, obscurity)
1
rune(difficulty, question, secret, obscurity)
1
secrecy(difficulty, question, secret, obscurity)
1
secret(question, problem, obscurity, knot)
1
sphinx(difficulty, question, secret, knot)
1
subtlety(difficulty, question, secret, obscurity)
1
thriller(difficulty, question, secret, obscurity)
1
whodunit(difficulty, question, secret, obscurity)
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APASmart Define. (2016). stickler thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/stickler/thesaurus/synonyms
ChicagoSmart Define. 2016. "stickler thesaurus" https://smartdefine.org/stickler/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, stickler thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/stickler/thesaurus/synonyms>.
MLASmart Define. "stickler thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/stickler/thesaurus/synonyms>