| awkward(uncertain, hesitant) | |
| backup(extra, auxiliary, supernumerary) | |
| benchmarked(adjective, experimental) | |
| canny | |
| confused(adjective, uncertain, hesitant, dubious, unsure) | |
| conjectural(adjective, doubtful, unsettled, vague, academic) | |
| contestable(adjective, uncertain) | |
| controversial(adjective, uncertain) | |
| debatable(adjective, uncertain) | |
| deniable(adjective, uncertain) | |
| disinclined(adjective, uncertain, indefinite) | |
| double-minded(adjective, irresolute) | |
| fickle(adjective, weak, uncertain, doubtful, hesitant) | |
| flitting(adjective, irresolute) | |
| mysterious(adjective, uncertain) | |
| noncommittal(adjective, decide) | |
| pendulous(adjective, decide) | |
| pilot(adjective, new, trial, untried, preliminary) | |
| rough(adjective, start, unsettled, incomplete, partial) | |
| stopgap(adjective, extra, temporary, auxiliary, contingent) |
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| APA | Smart Define. (2015). tentative thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/tentative/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "tentative thesaurus" https://smartdefine.org/tentative/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, tentative thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/tentative/thesaurus/synonyms>. |
| MLA | Smart Define. "tentative thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/tentative/thesaurus/synonyms> |