- Definitions|2
- Thesaurus|331
- Abbreviations|0
111 entries under noun topic. ×
| closed book(expression, question, secret, puzzle) | |
| crux(difficulty, question, secret, puzzle) | |
| cryptogram(difficulty, question, secret, puzzle) | |
| difficulty(trouble, challenge, question, secret) | |
| grabber(difficulty, challenge, question, problem) | |
| hoodlum | |
| mind-boggler(challenge, doubt, question, problem) | |
| model | |
| mystification(question, secret, puzzle, knot) | |
| poseur | |
| prickle | |
| sixty-four-thousand-dollar question(expression, difficulty, question, secret) | |
| sphinx(difficulty, question, secret, puzzle) | |
| spine | |
| stickler(difficulty, challenge, question, problem) | |
| teaser(difficulty, challenge, question, problem) | |
| why(difficulty, question, secret, puzzle) | |
| abstruseness(difficulty, question, secret, puzzle) | |
| baffler | |
| brain-teaser |
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| APA | Smart Define. (2016). stumper thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/stumper/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "stumper thesaurus" https://smartdefine.org/stumper/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, stumper thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/stumper/thesaurus/synonyms>. |
| MLA | Smart Define. "stumper thesaurus" 29 February 2016. Web. 29 September 2026. <https://smartdefine.org/stumper/thesaurus/synonyms> |