- Definitions|0
- Thesaurus|14
- Abbreviations|0
| brain-teaser(noun, question, puzzle, riddle) | |
| brainteaser(noun, question, puzzle, riddle) | |
| confusing(noun, question, puzzle, riddle) | |
| difficult problem(noun, question, puzzle, riddle) | |
| difficult question(noun, question, puzzle, riddle) | |
| enigma(noun, question, puzzle, riddle) | |
| pun(noun, question, puzzle, riddle) | |
| puzzle(noun, question, riddle) | |
| puzzlement(noun, question, puzzle, riddle) | |
| riddle(noun, question, puzzle) | |
| secret(noun, question, puzzle, riddle) | |
| teaser(noun, question, puzzle, riddle) | |
| conundrum(noun, trouble, challenge, puzzle, riddle) |
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| APA | Smart Define. (1970). mind-breaker thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/mind-breaker/thesaurus/synonyms |
| Chicago | Smart Define. 1970. "mind-breaker thesaurus" https://smartdefine.org/mind-breaker/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 1970, mind-breaker thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/mind-breaker/thesaurus/synonyms>. |
| MLA | Smart Define. "mind-breaker thesaurus" 1 January 1970. Web. 21 September 2026. <https://smartdefine.org/mind-breaker/thesaurus/synonyms> |