70 entries under difficulty topic. ×

1
drawback(noun, problem, disadvantage, bug)
1
grabber(noun, challenge, question, problem)
1
obstacle(noun, problem, disadvantage, bug)
1
sixty-four-thousand-dollar question(noun, expression, question, puzzle)
1
sphinx(noun, question, problem, puzzle)
1
stickler(noun, challenge, question, problem)
1
stumbling block(noun, expression, trick, problem)
1
twister(noun, challenge, question, problem)
0
abstruseness(noun, question, puzzle, perplexity)
0
bar(problem, disadvantage, bug, impediment)
0
barrier(problem, disadvantage, bug, impediment)
0
blockade(problem, disadvantage, bug, impediment)
0
braintwister(noun, question, puzzle, perplexity)
0
brake(problem, disadvantage, bug, impediment)
0
bug(problem, disadvantage, impediment, hitch)
0
charade(noun, question, puzzle, mystery)
0
chiller(noun, question, puzzle, mystery)
0
clog(problem, disadvantage, bug, impediment)
0
crimp(problem, disadvantage, bug, impediment)
0
cropper(problem, disadvantage, bug, impediment)
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APASmart Define. (2015). puzzler thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/puzzler/thesaurus/synonyms
ChicagoSmart Define. 2015. "puzzler thesaurus" https://smartdefine.org/puzzler/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, puzzler thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/puzzler/thesaurus/synonyms>.
MLASmart Define. "puzzler thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/puzzler/thesaurus/synonyms>