89 entries under question topic. ×

8
stumper(noun, trouble, difficulty, challenge)
7
brainteaser(noun, difficulty, challenge, secret)
7
business(noun, trouble, worry, concern, point)
7
closed book(noun, expression, trouble, challenge)
7
crux(noun, trouble, difficulty, burden, challenge)
7
puzzlement(noun, trouble, challenge, secret)
7
topic(noun, trouble, worry, concern, point)
6
concern(noun, trouble, worry, strain, point)
6
puzzler(noun, difficulty, challenge, disadvantage)
6
theme(noun, activity, study, work, point)
5
why(noun, trouble, challenge, secret)
5
affair(noun, trouble, worry, concern, point)
5
bugaboo(noun, worry, concern, challenge)
5
cryptogram(noun, difficulty, secret, puzzle)
5
mystification(noun, trouble, challenge, secret)
4
argument(noun, trouble, bother, concern, dispute)
4
facer(noun, trouble, challenge)
4
intricacy(noun, difficulty, challenge, puzzle)
4
mind-boggler(noun, challenge, doubt, secret)
4
plight(noun, fix, difficulty, burden)
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APASmart Define. (2016). problem thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/problem/thesaurus/synonyms
ChicagoSmart Define. 2016. "problem thesaurus" https://smartdefine.org/problem/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, problem thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/problem/thesaurus/synonyms>.
MLASmart Define. "problem thesaurus" 1 March 2016. Web. 22 September 2026. <https://smartdefine.org/problem/thesaurus/synonyms>