628 entries under noun topic. ×

7
paradox(trouble, challenge, secret, puzzle)
7
puzzlement(trouble, challenge, question, secret)
7
topic(trouble, worry, concern, point)
6
concern(trouble, worry, strain, point)
6
fix(difficulty, mess, embarrassment, bug)
6
headache(trouble, concern, strain, difficulty)
6
jam(fix, check, delay, stay)
6
knot(difficulty, puzzle, mystery, riddle)
6
puzzler(difficulty, challenge, question, disadvantage)
6
text(point, line, issue, idea)
6
theme(activity, study, work, point)
5
why(trouble, challenge, question, secret)
5
impediment(trouble, check, delay, stay)
5
affair(trouble, worry, concern, point)
5
bug(difficulty, weakness, fault, failing)
5
bugaboo(worry, concern, challenge, question)
5
bugbear(worry, concern, ghost)
5
burden(trouble, concern, point, difficulty)
5
catch(difficulty, weakness, failing, hindrance)
5
cryptogram(difficulty, question, secret, puzzle)
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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>