89 entries under secret topic. ×
| acroamatic(adjective, obscure, complex, deep, thoughtful) | |
| closed book(noun, expression, question, puzzle) | |
| clouded(obscure, dark, unknown, hidden) | |
| covered(obscure, unknown, hidden, concealed) | |
| eclipsed(obscure, dark, unknown, hidden) | |
| intricate(adjective, evil, heavy, deep, doubtful) | |
| sequestered(obscure, dark, unknown, hidden) | |
| sixty-four-thousand-dollar question(expression, question, puzzle, subtlety) | |
| surreptitious(adjective, unknown, hidden, underground) | |
| tough nut to crack(noun, expression, idiom, question) | |
| abstruseness(noun, question, puzzle, subtlety) | |
| brainteaser(noun, question, puzzle, subtlety) | |
| braintwister(noun, question, puzzle, subtlety) | |
| charade(difficulty, question, puzzle, subtlety) | |
| chiller(difficulty, question, puzzle, subtlety) | |
| cliffhanger(difficulty, question, puzzle, obscurity) | |
| crux(difficulty, question, puzzle, obscurity) | |
| cryptogram(difficulty, question, puzzle, obscurity) | |
| difficulty(question, puzzle, obscurity, subtlety) | |
| grabber(noun, difficulty, question, puzzle) |
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| APA | Smart Define. (2015). occult thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/occult/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "occult thesaurus" https://smartdefine.org/occult/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, occult thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/occult/thesaurus/synonyms>. |
| MLA | Smart Define. "occult thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/occult/thesaurus/synonyms> |