3 entries under challenge topic. ×

4
deal breaker(noun, expression, case, matter)
2
conundrum(noun, trouble, question, mysterious)
1
physics(noun, issue, case, matter)
10 years ago|686 views|share |citing 
APASmart Define. (2016). enigma thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/enigma/thesaurus/related
ChicagoSmart Define. 2016. "enigma thesaurus" https://smartdefine.org/enigma/thesaurus/related (accessed September 27, 2026).
HarvardSmart Define 2016, enigma thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/enigma/thesaurus/related>.
MLASmart Define. "enigma thesaurus" 1 April 2016. Web. 27 September 2026. <https://smartdefine.org/enigma/thesaurus/related>