93 entries under noun topic. ×

3
informalbrain-teaser(dilemma, paradox, enigma)
3
mesh
3
mystery story
3
nonplus
3
plight
3
predicament
3
puzzler(show, difficulty, challenge, question)
3
quandary
3
stickler(difficulty, challenge, question, problem)
3
word game(dilemma, paradox, enigma)
2
damage(verb, permeate, perforate)
2
grating
2
head-scratcher(trouble, challenge, brainteaser)
2
intricacy(challenge, question, puzzle, mystery)
2
mind-boggler(challenge, doubt, question, problem)
2
stumper(difficulty, challenge, question, problem)
2
tough nut to crack(expression, idiom, question, secret)
2
twister(difficulty, challenge, question, problem)
1
challenge(question, puzzle, mystery, conundrum)
1
complexity
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APASmart Define. (2016). riddle thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/riddle/thesaurus/synonyms
ChicagoSmart Define. 2016. "riddle thesaurus" https://smartdefine.org/riddle/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, riddle thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/riddle/thesaurus/synonyms>.
MLASmart Define. "riddle thesaurus" 1 April 2016. Web. 26 September 2026. <https://smartdefine.org/riddle/thesaurus/synonyms>