117 entries under vague topic. ×
| inexplicit(adjective, uncertain, unclear, ambiguous) | |
| muddy(uncertain, unclear, indistinct, indistinguishable) | |
| pending(adjective, open, uncertain, unsettled) | |
| shadowy(adjective, weak, obscure, rough, dark) | |
| suppositional(uncertain, imaginary, theoretical, supposed) | |
| unconfirmed(adjective, uncertain, shaky, dubious) | |
| undefined(adjective, weak, dark, uncertain, dim) | |
| unfixed(adjective, uncertain, hesitant, unknown) | |
| unspecific(adjective, unknown, general, unclear) | |
| unspecified(adjective, rough, unknown, unclear) | |
| changeable(uncertain, uneven, indefinite, wavering) | |
| changing(adjective, weak, uncertain, unsettled) | |
| clear as dishwater(expression, idiom, uncertain, unclear) | |
| enigmatical(uncertain, unclear) | |
| fuzzy(unclear, ambiguous, hazy, misleading) | |
| general(adjective, rough, unknown, unclear) | |
| hanging by a thread(expression, adjective, idiom, delicate, uncertain) | |
| ill-defined(adjective, weak, obscure, rough, dark) | |
| imaginary(theoretical, supposed, assumed, mythical) | |
| inconstant(shaky, changeable, uneven, unbalanced) |
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| APA | Smart Define. (2016). doubtful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/doubtful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "doubtful thesaurus" https://smartdefine.org/doubtful/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, doubtful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/doubtful/thesaurus/synonyms>. |
| MLA | Smart Define. "doubtful thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/doubtful/thesaurus/synonyms> |