40 entries under noun topic. ×

4
brain basher(difficult, issue, question, task)
4
twister(difficult, issue, question, task)
3
perplexity(conundrum, twister, stumper, brain-teaser)
3
brainteaser(difficult, issue, question, task)
3
conundrum(difficult, issue, question, puzzle)
3
puzzle(verb, conundrum, twister, stumper)
2
chinese puzzle(difficult, issue, question, task)
2
eye teaser(difficult, issue, question, task)
2
head-scratcher(difficult, issue, question, task)
2
mind-teaser(difficult, issue, question, task)
2
mindbender(difficult, issue, question, task)
1
brain(see, think, decide)
1
head(see, think, decide)
1
mind(see, think, decide)
1
mindgames(difficult, issue, question, task)
1
puzzler(difficult, issue, question, task)
1
secret(conundrum, twister, stumper, brain-teaser)
1
stumper(difficult, issue, question, task)
1
teaser(difficult, issue, question, task)
1
thought(see, think, decide)
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APASmart Define. (2016). enigma thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/enigma/thesaurus/broader
ChicagoSmart Define. 2016. "enigma thesaurus" https://smartdefine.org/enigma/thesaurus/broader (accessed September 28, 2026).
HarvardSmart Define 2016, enigma thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/enigma/thesaurus/broader>.
MLASmart Define. "enigma thesaurus" 1 April 2016. Web. 28 September 2026. <https://smartdefine.org/enigma/thesaurus/broader>