628 entries under noun topic. ×

9
perplexity(trouble, worry, concern, strain)
9
pickle(fix, worry, difficulty, distress)
8
case(point, difficulty, line, issue)
8
hitch(trouble, difficulty, weakness, informal)
8
subject(study, trouble, worry, concern)
8
bother(trouble, defeat, worry, concern)
8
brain-teaser(trouble, challenge, puzzle)
8
challenge(verb, difficulty, issue, question)
8
nuisance(trouble, person, bother, worry)
8
point(concern, difficulty, line, interest)
8
stumper(trouble, difficulty, challenge, question)
8
worry(trouble, defeat, concern, strain)
7
can of worms(expression, idiom, trouble, easy)
7
labyrinth(secret, complexity, maze)
7
brainteaser(difficulty, challenge, question, secret)
7
business(trouble, worry, concern, point)
7
closed book(expression, trouble, challenge, question)
7
crux(trouble, difficulty, burden, challenge)
7
hindrance(trouble, check, worry, delay)
7
mess(trouble, fix, worry, difficulty)
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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>