157 entries under dubious topic. ×
| ridiculous(adjective, suspicious) | |
| rocky(adjective, weak, delicate, uncertain, unstable) | |
| shifty(dishonest, vague, unreliable, crooked) | |
| undependable(adjective, uncertain, nervous, vague) | |
| absurd(adjective, improbable) | |
| capricious(adjective, changeable, uneven, unbalanced) | |
| cryptic(dark, uncertain, dishonest, vague) | |
| dodgy(adjective, dishonest, unreliable, suspect) | |
| impossible(adjective, extraordinary, unreasonable, amazing) | |
| open to doubt(expression, idiom, uncertain, astonishing) | |
| peculiar(adjective, unusual, strange, suspect) | |
| sensitive(adjective, weak, delicate, uncertain, unstable) | |
| touchy(adjective, open, obscure, delicate, uncertain) | |
| wobbly(adjective, weak, uncertain, nervous, sensitive) | |
| contentious(questionable, provocative, debatable, debated) | |
| evasive(adjective, uncertain, dishonest, faint, vague) | |
| fluctuating(adjective, weak, uncertain, sensitive, hesitant) | |
| funny(unusual, strange, suspect, shady) | |
| mootable(adjective, certain, uncertain, unsure) | |
| nebulous(weak, unclear, indistinct, indistinguishable) |
For more, visit
Doubtful on
Power Thesaurus
| APA | Smart Define. (2016). doubtful thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/doubtful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "doubtful thesaurus" https://smartdefine.org/doubtful/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, doubtful thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/doubtful/thesaurus/synonyms>. |
| MLA | Smart Define. "doubtful thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/doubtful/thesaurus/synonyms> |