24 entries under speculative topic. ×
| theoretical(adjective, obscure, extraordinary, superior, uncertain) | |
| conjectural(adjective, belief, abstract, imaginary, apparent) | |
| suppositional(adjective, belief, uncertain, doubtful, apparent) | |
| supposed(adjective, belief, uncertain, fantastic, doubtful) | |
| assumed(verb, adjective, uncertain, doubtful, risky) | |
| suppositious(adjective, belief, uncertain, doubtful, apparent) | |
| academic(adjective, philosophy, uncertain, doubtful, imaginary) | |
| putative(adjective, uncertain, doubtful, imaginary, supposition) | |
| doubtful(verb, adjective, uncertain, dubious, imaginary) | |
| suppositive(adjective, belief, uncertain, doubtful, apparent) | |
| reputed(adjective, uncertain, doubtful, theoretical, supposed) | |
| suspect(verb, adjective, uncertain, doubtful, dubious) | |
| made-up(fantastic, unreal, theoretical, fictitious, invented) | |
| surmised(adjective, uncertain, doubtful, expected, supposed) | |
| estimated(theoretical, supposed, alleged, presumed) | |
| tentative(adjective, uncertain, doubtful, academic) | |
| fictional(negative, fantastic, unreal, theoretical, fictitious) | |
| figured(uncertain, doubtful) | |
| guessing(uncertain, doubtful) | |
| guesstimated(uncertain, doubtful) |
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| APA | Smart Define. (2015). hypothetical thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/hypothetical/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hypothetical thesaurus" https://smartdefine.org/hypothetical/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, hypothetical thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/hypothetical/thesaurus/synonyms>. |
| MLA | Smart Define. "hypothetical thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/hypothetical/thesaurus/synonyms> |