111 entries under noun topic. ×

1
braintwister(difficulty, question, secret, puzzle)
1
case(puzzle, riddle, enigma)
1
charade(difficulty, question, secret, puzzle)
1
chiller(difficulty, question, secret, puzzle)
1
cliffhanger(difficulty, question, secret, puzzle)
1
confounder
1
conundrum(informal, question, problem)
1
cruncher(trouble, challenge, question)
1
dagger
1
difficult question(trouble, challenge, question)
1
dilemma(trouble, challenge, question)
1
ender
1
eye teaser
1
facer(trouble, challenge, question)
1
goon
1
grubber
1
hood
1
informalposer(trouble, challenge, question)
1
inscrutability(difficulty, question, secret, puzzle)
1
inscrutableness(difficulty, question, secret, puzzle)
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APASmart Define. (2016). stumper thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/stumper/thesaurus/synonyms
ChicagoSmart Define. 2016. "stumper thesaurus" https://smartdefine.org/stumper/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, stumper thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/stumper/thesaurus/synonyms>.
MLASmart Define. "stumper thesaurus" 29 February 2016. Web. 29 September 2026. <https://smartdefine.org/stumper/thesaurus/synonyms>