25 entries under perplexity topic. ×
| inscrutability(difficulty, question, secret, puzzle) | |
| inscrutableness(difficulty, question, secret, puzzle) | |
| mindboggler(difficulty, question, secret, puzzle) | |
| occult(difficulty, question, secret, puzzle) | |
| puzzler(difficulty, question, problem, puzzle) | |
| rebus(difficulty, question, secret, puzzle) | |
| rune(difficulty, question, secret, puzzle) | |
| thriller(difficulty, question, secret, puzzle) | |
| whodunit(difficulty, question, secret, puzzle) | |
| abstruseness(difficulty, question, secret, puzzle) | |
| brainteaser(difficulty, question, secret, puzzle) | |
| braintwister(difficulty, question, secret, puzzle) | |
| bewitchment(abstruseness, inscrutableness) | |
| confidential information(expression, abstruseness, inscrutableness) | |
| hocuspocus(abstruseness, inscrutableness) | |
| magic number(expression, abstruseness, inscrutableness) | |
| occultism(abstruseness, inscrutableness) | |
| privileged information(expression, abstruseness, inscrutableness) | |
| runes(abstruseness, inscrutableness) | |
| skeleton in cupboard(expression, idiom, abstruseness, inscrutableness) |
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| APA | Smart Define. (2015). sphinx thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sphinx/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "sphinx thesaurus" https://smartdefine.org/sphinx/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, sphinx thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sphinx/thesaurus/synonyms>. |
| MLA | Smart Define. "sphinx thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/sphinx/thesaurus/synonyms> |