- Definitions|2
- Thesaurus|247
- Abbreviations|0
18 entries under challenging topic. ×
| doubtful(adjective, clear, certain, uncertain, unsettled) | |
| dubious(adjective, clear, certain, uncertain, anxious) | |
| problematic(adjective, clear, open, certain, uncertain) | |
| questionable(adjective, clear, certain, uncertain, anxious) | |
| uncertain(adjective, clear, certain, anxious, doubtful) | |
| debatable(adjective, uncertain, doubtful, unsettled, shaky) | |
| ambiguous(adjective, clear, certain, uncertain, anxious) | |
| indecisive(adjective, clear, certain, uncertain, anxious) | |
| open(adjective, uncertain, doubtful, unsettled, shaky) | |
| arguable(adjective, uncertain, doubtful, unsettled, dubious) | |
| moot(adjective, uncertain, doubtful, unsettled, dubious) | |
| unsettled(adjective, uncertain, doubtful, vague, dubious) | |
| awkward(tricky, sticky) | |
| difficult(tricky, sticky) | |
| knotty(tricky, sticky) | |
| puzzling(obscure, tricky, indefinite, equivocal, sticky) | |
| sticky | |
| tricky |
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| APA | Smart Define. (2015). dubitable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/dubitable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "dubitable thesaurus" https://smartdefine.org/dubitable/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, dubitable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/dubitable/thesaurus/synonyms>. |
| MLA | Smart Define. "dubitable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/dubitable/thesaurus/synonyms> |