6 entries under preliminary topic. ×
| exploratory(adjective, penetrating, tentative, searching, analytical) | |
| tentative(adjective, experimental, examining, heuristic) | |
| trial(adjective, tentative, experimental, examining) | |
| test(adjective, tentative, experimental, examining) | |
| pilot(adjective, tentative, examining, heuristic) | |
| probationary(adjective, tentative, examining, heuristic) |
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Investigative on
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| APA | Smart Define. (2015). investigative thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/investigative/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "investigative thesaurus" https://smartdefine.org/investigative/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, investigative thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/investigative/thesaurus/synonyms>. |
| MLA | Smart Define. "investigative thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/investigative/thesaurus/synonyms> |