140 entries under challenge topic. ×
| bugaboo(noun, question, puzzle, example) | |
| bump heads(verb, expression, question, contest) | |
| clash(verb, question, contest, impugn) | |
| cliff-hanger(noun, question, puzzle, example) | |
| confute(verb, question, contest, impugn) | |
| contend(verb, question, contest, impugn) | |
| contradict(verb, dispute, doubt, question) | |
| controvert(verb, oppose, dispute, doubt) | |
| deny(verb, dispute, doubt, question) | |
| disaffirm(verb, dispute, doubt, question) | |
| discept(verb, question, contest, impugn) | |
| discuss(verb, question, contest, impugn) | |
| disprove(verb, question, contest, impugn) | |
| gainsay(verb, dispute, doubt, question) | |
| grabber(noun, doubt, question, uncertainty) | |
| hassle(verb, question, contest, impugn) | |
| have at(verb, expression, question, contest) | |
| illustration(noun, question, puzzle, example) | |
| intricacy(noun, question, puzzle, example) | |
| kick around(verb, expression, question, contest) |
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| APA | Smart Define. (2016). query thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/query/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "query thesaurus" https://smartdefine.org/query/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, query thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/query/thesaurus/synonyms>. |
| MLA | Smart Define. "query thesaurus" 17 February 2016. Web. 22 September 2026. <https://smartdefine.org/query/thesaurus/synonyms> |