5
enigma(noun, trouble, challenge, question)
3
dilemma(noun, trouble, challenge, question)
3
mystery(noun, trouble, challenge, question)
3
paradox
3
problem(noun, trouble, challenge, question)
3
puzzle(noun, trouble, challenge, question)
3
quandary(noun, trouble, challenge, question)
3
question(noun, trouble, challenge)
3
stumper(noun, trouble, challenge, question)
2
difficult question(noun, expression, trouble, challenge, question)
2
knot
1
bone of contention(expression, idiom)
1
catechism
1
conundrum(expression, difficulty, question, problem)
1
cross-question
1
cruncher(noun, trouble, challenge, question)
1
crux
1
demand
1
difficulty(noun, trouble, challenge, question)
1
facer(noun, trouble, challenge, question)
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APASmart Define. (2015). vexed question thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/vexed_question/thesaurus/synonyms
ChicagoSmart Define. 2015. "vexed question thesaurus" https://smartdefine.org/vexed_question/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, vexed question thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/vexed_question/thesaurus/synonyms>.
MLASmart Define. "vexed question thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/vexed_question/thesaurus/synonyms>