115 entries under unclear topic. ×
| speculative(adjective, uncertain, vague, interested) | |
| tentative(adjective, open, weak, uncertain, shy) | |
| uneasy(adjective, open, uncertain, anxious, awkward) | |
| dicey(noun, adjective, open, obscure, delicate) | |
| doubtable(adjective, open, obscure, uncertain, shaky) | |
| touch-and-go(adjective, shaky, unlikely, questionable) | |
| unconfident(adjective, uncertain, nervous, shaky, dubious) | |
| confused(adjective, weak, obscure, dark, uncertain) | |
| contingent(adjective, delicate, uncertain, unstable, shaky) | |
| hazardous(adjective, open, obscure, delicate, uncertain) | |
| inconclusive(adjective, clear, certain, uncertain) | |
| sneaky(adjective, informal, shaky, dubious) | |
| weak(adjective, great, extraordinary, uncertain, anxious) | |
| perplexing(dark, uncertain, mysterious, indistinct) | |
| touchy(adjective, open, obscure, delicate, uncertain) | |
| blurred(hazy, indistinct, indistinguishable, blurry) | |
| confusing(uncertain, vague, ambiguous, misleading) | |
| dim(hazy, indistinct, indistinguishable, blurry) | |
| imprecise(adjective, rough, vague, unknown) | |
| impugnable(adjective, open, obscure, delicate, uncertain) |
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| APA | Smart Define. (2016). doubtful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/doubtful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "doubtful thesaurus" https://smartdefine.org/doubtful/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, doubtful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/doubtful/thesaurus/synonyms>. |
| MLA | Smart Define. "doubtful thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/doubtful/thesaurus/synonyms> |