99 entries under question topic. ×

5
quiz(noun, verb, difficult, issue, think)
5
rebus(noun, secret, puzzle, brain-twister)
4
nonplus(noun, verb, difficult, issue, think)
4
quandary(noun, trouble, difficult, issue, challenge)
4
mind-boggler(noun, challenge, problem, secret)
4
obscurity(noun, difficult, issue, secret)
4
trouble(noun, verb, adjective, difficult, issue)
4
vexed question(noun, expression, idiom, trouble, challenge)
4
challenge(noun, verb, difficulty, difficult, issue)
4
cliffhanger(noun, difficulty, secret, puzzle)
4
desideratum(noun, difficult, issue, task)
4
difficult question(noun, trouble, challenge, puzzle)
4
discord(noun, verb, difficult, issue, think)
4
inconsistency(noun, difficult, issue, absurdity)
4
knot(noun, informal, secret, dilemma)
4
nonsense(noun, difficult, issue, absurdity)
4
open question(noun, expression, idiom, secret)
4
parable(noun, secret, dilemma, mystery)
4
plain question(noun, expression, idiom, secret)
4
point in dispute(noun, expression, idiom, secret)
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APASmart Define. (2016). enigma thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/enigma/thesaurus/synonyms
ChicagoSmart Define. 2016. "enigma thesaurus" https://smartdefine.org/enigma/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, enigma thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/enigma/thesaurus/synonyms>.
MLASmart Define. "enigma thesaurus" 1 April 2016. Web. 24 September 2026. <https://smartdefine.org/enigma/thesaurus/synonyms>