93 entries under noun topic. ×
| enigma(trouble, show, difficulty, challenge) | |
| conundrum(trouble, show, difficulty, challenge) | |
| mystery(trouble, show, difficulty, challenge) | |
| puzzle(trouble, show, difficulty, challenge) | |
| problem(trouble, difficulty, challenge, question) | |
| brain-teaser(trouble, challenge, question, puzzle) | |
| closed book(expression, idiom, trouble, challenge) | |
| poser(trouble, difficulty, challenge, question) | |
| secret(trouble, challenge, question, puzzle) | |
| labyrinth(secret, puzzle, complexity, maze) | |
| screen(verb, separate, arrange, examine) | |
| question(difficulty, secret, puzzle, obscurity) | |
| sieve(verb, separate, arrangement, opening) | |
| puzzlement(trouble, challenge, question, secret) | |
| paradox(trouble, challenge, question, puzzle) | |
| dilemma(trouble, challenge, question, puzzle) | |
| mystification(trouble, challenge, question, secret) | |
| strainer | |
| brainteaser(difficulty, challenge, question, secret) | |
| filter(verb, separate, drain, select) |
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| APA | Smart Define. (2016). riddle thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/riddle/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "riddle thesaurus" https://smartdefine.org/riddle/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, riddle thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/riddle/thesaurus/synonyms>. |
| MLA | Smart Define. "riddle thesaurus" 1 April 2016. Web. 24 September 2026. <https://smartdefine.org/riddle/thesaurus/synonyms> |