15 entries under knot topic. ×
| secret(question, problem, puzzle, obscurity) | |
| stumper(difficulty, question, secret, puzzle) | |
| teaser(difficulty, question, secret, puzzle) | |
| cliffhanger(difficulty, question, secret, puzzle) | |
| crux(difficulty, question, secret, puzzle) | |
| cryptogram(difficulty, question, secret, puzzle) | |
| grabber(difficulty, question, secret, puzzle) | |
| mystification(question, secret, puzzle, obscurity) | |
| perplexity(noun, difficulty, question, secret, puzzle) | |
| problem(difficulty, question, secret, puzzle) | |
| puzzlement(question, secret, puzzle, obscurity) | |
| question(difficulty, secret, puzzle, obscurity) | |
| stickler(difficulty, question, secret, puzzle) | |
| twister(difficulty, question, secret, puzzle) | |
| why(difficulty, question, secret, puzzle) |
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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> |