46 entries under difficult topic. ×
| conundrum(noun, trouble, show, difficulty) | |
| brain-teaser(noun, trouble, issue, challenge) | |
| puzzler(noun, show, difficulty, issue) | |
| stumper(noun, trouble, difficulty, issue) | |
| dilemma(noun, trouble, issue, challenge) | |
| brainteaser(noun, difficulty, issue, challenge) | |
| teaser(noun, difficulty, issue, challenge) | |
| head-scratcher(noun, trouble, issue, challenge) | |
| crossword(noun, issue, question, task) | |
| crossword puzzle(noun, expression, idiom, issue) | |
| difficulty(noun, trouble, issue, challenge) | |
| twister(noun, difficulty, issue, challenge) | |
| quiz(noun, verb, issue, think) | |
| nonplus(noun, verb, issue, think) | |
| quandary(noun, trouble, issue, challenge) | |
| brain twister(noun, expression, idiom, issue) | |
| obscurity(noun, issue, question, secret) | |
| trouble(noun, verb, adjective, issue) | |
| challenge(noun, verb, difficulty, issue) | |
| desideratum(noun, issue, question, task) |
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| APA | Smart Define. (2016). enigma thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/enigma/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "enigma thesaurus" https://smartdefine.org/enigma/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, enigma thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/enigma/thesaurus/synonyms>. |
| MLA | Smart Define. "enigma thesaurus" 1 April 2016. Web. 20 September 2026. <https://smartdefine.org/enigma/thesaurus/synonyms> |