74 entries under doubtful topic. ×
| questionable(adjective, obscure, rough, uncertain) | |
| vacillating(adjective, uncertain, vague, hesitant) | |
| wavering(adjective, open, uncertain, vague) | |
| cryptic(obscure, uncertain, vague, dubious) | |
| inconstant(adjective, careless, loose, vague) | |
| enigmatic(obscure, uncertain, vague, dubious) | |
| muddled(adjective, uncertain, faint, vague) | |
| mysterious(adjective, strange, uncertain, dubious) | |
| unstable(adjective, loose, uncertain, unsettled) | |
| dark(adjective, dull, weak, rough, strange) | |
| debatable(adjective, uncertain, vague, dubious) | |
| hesitant(adjective, open, uncertain, vague) | |
| incalculable(adjective, complete, vague, hesitant) | |
| inconclusive(adjective, obscure, uncertain, vague) | |
| irregular(adjective, vague, hesitant, unsure) | |
| problematic(adjective, uncertain, vague, dubious) | |
| unreliable(adjective, loose, uncertain, vague) | |
| changeable(adjective, careless, loose, uncertain) | |
| shady(uncertain, shaky, dubious, unlikely) | |
| unpredictable(adjective, loose, vague, hesitant) |
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| APA | Smart Define. (2015). indefinite thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/indefinite/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "indefinite thesaurus" https://smartdefine.org/indefinite/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, indefinite thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/indefinite/thesaurus/synonyms>. |
| MLA | Smart Define. "indefinite thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/indefinite/thesaurus/synonyms> |