50 entries under problem topic. ×

10
enigma(noun, show, difficulty, challenge, question)
9
puzzle(noun, show, difficulty, challenge, question)
5
mystery(noun, show, difficulty, challenge, question)
4
conundrum(noun, show, difficulty, challenge, question)
4
teaser(noun, difficulty, challenge, question)
3
crux(noun, difficulty, question, puzzle)
3
mind-boggler(noun, challenge, doubt, question)
3
question(noun, difficulty, puzzle, mystery)
3
riddle(noun, show, difficulty, challenge, question)
3
stumper(noun, difficulty, challenge, question)
2
catch(noun, difficulty, trick, disadvantage)
2
snag(noun, difficulty, obstacle, complication)
2
why(noun, difficulty, question, puzzle)
1
cliffhanger(noun, difficulty, question, puzzle)
1
cryptogram(noun, difficulty, question, puzzle)
1
difficulty(noun, challenge, question, bug)
1
drawback(noun, difficulty, disadvantage, bug)
1
grabber(noun, difficulty, challenge, question)
1
obstacle(noun, difficulty, disadvantage, bug)
1
secret(puzzle, perplexity, mystery, paradox)
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APASmart Define. (2015). puzzler thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/puzzler/thesaurus/synonyms
ChicagoSmart Define. 2015. "puzzler thesaurus" https://smartdefine.org/puzzler/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, puzzler thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/puzzler/thesaurus/synonyms>.
MLASmart Define. "puzzler thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/puzzler/thesaurus/synonyms>