196 entries under trouble topic. ×

8
brain-teaser(noun, challenge, puzzle)
8
nuisance(noun, person, bother, worry)
8
stumper(noun, difficulty, challenge, question)
8
worry(noun, defeat, concern, strain)
7
can of worms(noun, expression, idiom, easy)
7
business(noun, worry, concern, point)
7
closed book(noun, expression, challenge, question)
7
crux(noun, difficulty, burden, challenge)
7
hindrance(noun, check, worry, delay)
7
mess(noun, fix, worry, difficulty)
7
paradox(noun, challenge, secret, puzzle)
7
puzzlement(noun, challenge, question, secret)
7
topic(noun, worry, concern, point)
6
concern(noun, worry, strain, point)
6
headache(noun, concern, strain, difficulty)
5
why(noun, challenge, question, secret)
5
impediment(noun, check, delay, stay)
5
affair(noun, worry, concern, point)
5
burden(noun, concern, point, difficulty)
5
drawback(noun, difficulty, weakness, bar)
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APASmart Define. (2016). problem thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/problem/thesaurus/synonyms
ChicagoSmart Define. 2016. "problem thesaurus" https://smartdefine.org/problem/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, problem thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/problem/thesaurus/synonyms>.
MLASmart Define. "problem thesaurus" 1 March 2016. Web. 23 September 2026. <https://smartdefine.org/problem/thesaurus/synonyms>