75 entries under puzzle topic. ×

66
riddle(noun, trouble, show, difficulty, challenge)
59
mystery(noun, trouble, show, dispute, difficulty)
56
conundrum(noun, trouble, show, difficulty, difficult)
35
secret(noun, trouble, challenge, question)
29
problem(noun, trouble, difficulty, issue, challenge)
29
brain-teaser(noun, trouble, difficult, issue, challenge)
28
closed book(noun, expression, idiom, trouble, challenge)
17
paradox(noun, trouble, challenge, question, problem)
16
question(noun, trouble, challenge, doubt, problem)
15
puzzlement(noun, trouble, challenge, question, secret)
15
poser(noun, trouble, difficulty, challenge, question)
15
puzzler(noun, show, difficulty, difficult, issue)
13
mystification(noun, trouble, challenge, question, secret)
13
perplexity(noun, show, difficulty, question, secret)
12
stumper(noun, trouble, difficulty, difficult, issue)
10
why(noun, trouble, informal, challenge, question)
9
dilemma(noun, trouble, difficult, issue, challenge)
9
crux(noun, trouble, challenge, question, secret)
9
whodunit(noun, question, secret, dilemma)
9
brainteaser(noun, difficulty, difficult, issue, challenge)
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APASmart Define. (2016). enigma thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/enigma/thesaurus/synonyms
ChicagoSmart Define. 2016. "enigma thesaurus" https://smartdefine.org/enigma/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, enigma thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/enigma/thesaurus/synonyms>.
MLASmart Define. "enigma thesaurus" 1 April 2016. Web. 25 September 2026. <https://smartdefine.org/enigma/thesaurus/synonyms>