| empirical(adjective, tentative, experimental, examining) | |
| experimental(adjective, tentative, experimental, exploratory, examining) | |
| heuristic | |
| hit-or-miss(adjective, experimental) | |
| inquisitional | |
| inquisitorial(adjective, curious) | |
| meddlesome(adjective, curious) | |
| peering(adjective, curious) | |
| probative(adjective, experimental) | |
| probing(adjective, penetrating, interested, curious, tentative) | |
| test(adjective, tentative, preliminary, experimental, examining) | |
| testing(adjective, logical, tentative, systematic, examining) | |
| agape(adjective, curious) | |
| agog(adjective, curious) | |
| benchmarked(adjective, experimental) | |
| disquisitive(adjective, curious, inquisitive, snooping, inquiring) | |
| eavesdropping(adjective, curious) | |
| examinational | |
| examinatorial | |
| explorational |
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| APA | Smart Define. (2015). investigative thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/investigative/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "investigative thesaurus" https://smartdefine.org/investigative/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, investigative thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/investigative/thesaurus/synonyms>. |
| MLA | Smart Define. "investigative thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/investigative/thesaurus/synonyms> |