6
riddles(noun, secrets)
5
puzzles(noun, secrets)
5
mysteries(noun, secrets, unknowns)
3
conundrums(noun, secrets)
3
posers(noun, secrets)
3
problems(noun, secrets)
2
ciphers(noun, secrets)
2
brainteasers(noun, secrets)
2
charades
1
oracles
1
paradoxes(noun, unknowns)
1
puzzling things
1
rebuses
1
runes
1
secrets
1
subtleties
1
thrillers
1
whodunits
0
adages
0
chillers
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APASmart Define. (2015). enigmas thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/enigmas/thesaurus/synonyms
ChicagoSmart Define. 2015. "enigmas thesaurus" https://smartdefine.org/enigmas/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, enigmas thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/enigmas/thesaurus/synonyms>.
MLASmart Define. "enigmas thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/enigmas/thesaurus/synonyms>