30 entries under noun topic. ×

26
trouble(calm, order, benefit, issue)
24
problem(trouble, help, difficulty, agreement)
20
question(trouble, issue, doubt, problem)
12
doubt(calm, trouble, issue, question)
11
issue(trouble, challenge, case, doubt)
10
dilemma(trouble, issue, doubt, question)
9
difficulty(trouble, help, favor, ease)
7
mystery(adjective, quality, question, need)
7
can of worms(expression, trouble, issue, doubt)
7
knot(hard, difficulty, challenge, case)
7
mess(trouble, hard, difficulty, issue)
7
riddle(difficult, question, problem, puzzle)
6
puzzle(difficult, question, problem, lost)
6
bad situation(expression, trouble, issue, doubt)
6
disputed point(expression, trouble, issue, doubt)
5
cliff-hanger(informal, question, puzzle, conundrum)
4
disagreement(trouble, issue, doubt, question)
4
disconnection(division, separation, singularity)
4
dispute(trouble, issue, doubt, question)
4
hitch(trouble, issue, doubt, question)
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APASmart Define. (2016). solution thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/solution/thesaurus/antonyms
ChicagoSmart Define. 2016. "solution thesaurus" https://smartdefine.org/solution/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, solution thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/solution/thesaurus/antonyms>.
MLASmart Define. "solution thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/solution/thesaurus/antonyms>