6 entries under understanding topic. ×
| mystery(noun, secret, puzzle, abstruseness) | |
| brainteaser(noun, abstruseness, inscrutableness, rebus) | |
| sphinx(noun, abstruseness, inscrutableness, rebus) | |
| stumper(noun, abstruseness, inscrutableness, rebus) | |
| teaser(noun, abstruseness, inscrutableness, rebus) | |
| thriller(noun, abstruseness, inscrutableness, rebus) |
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| APA | Smart Define. (2015). known thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/known/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "known thesaurus" https://smartdefine.org/known/thesaurus/antonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, known thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/known/thesaurus/antonyms>. |
| MLA | Smart Define. "known thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/known/thesaurus/antonyms> |