- Definitions|2
- Thesaurus|226
- Abbreviations|0
36 entries under difficulty topic. ×
| mystery(noun, question, secret, puzzle) | |
| enigma(noun, question, secret, puzzle) | |
| riddle(noun, question, secret, puzzle) | |
| problem(noun, question, secret, puzzle) | |
| puzzle(noun, question, secret, obscurity) | |
| brainteaser(noun, question, secret, puzzle) | |
| poser(noun, question, secret, puzzle) | |
| sixty-four-thousand-dollar question(expression, question, secret, puzzle) | |
| stickler(question, secret, puzzle, knot) | |
| stumper(question, secret, puzzle, knot) | |
| teaser(question, secret, puzzle, knot) | |
| twister(question, secret, puzzle, knot) | |
| closed book(expression, question, secret, puzzle) | |
| perplexity(noun, question, secret, puzzle) | |
| abstruseness(question, secret, puzzle, obscurity) | |
| braintwister(question, secret, puzzle, obscurity) | |
| charade(question, secret, puzzle, obscurity) | |
| chiller(question, secret, puzzle, obscurity) | |
| cliffhanger(question, secret, puzzle, knot) | |
| rune(question, secret, puzzle, obscurity) |
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| APA | Smart Define. (2015). cryptogram thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/cryptogram/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "cryptogram thesaurus" https://smartdefine.org/cryptogram/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, cryptogram thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/cryptogram/thesaurus/synonyms>. |
| MLA | Smart Define. "cryptogram thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/cryptogram/thesaurus/synonyms> |