- Definitions|2
- Thesaurus|4.1k
- Abbreviations|0
101 entries under dubious topic. ×
| unconvincing(adjective, weak, great, flat, poor) | |
| crooked(adjective, false, corrupt, dishonest, immoral) | |
| inconceivable(adjective, extraordinary, amazing, doubtful) | |
| open to question(expression, adjective, idiom, uncertain, doubtful) | |
| opprobrious(adjective, dishonorable, disreputable, infamous) | |
| absurd(adjective, doubtful, unbelievable, implausible) | |
| chancy(adjective, clear, certain, uncertain, doubtful) | |
| misleading(adjective, uncertain, doubtful, faint, vague) | |
| not kosher(expression, suspect, shady) | |
| obnoxious | |
| ridiculous(adjective, doubtful, absurd, suspicious) | |
| strange(adjective, unusual, doubtful, unexpected) | |
| thin(adjective, weak, great, extraordinary, amazing) | |
| undetermined(adjective, uncertain, doubtful, vague, hesitant) | |
| unsound(adjective, uncertain, unsettled, unpredictable) | |
| unstable(adjective, open, obscure, uncertain, unsettled) | |
| contentious(adjective, doubtful, provocative, debatable) | |
| cryptic(adjective, uncertain, doubtful, vague) | |
| dodgy(adjective, corrupt, dishonest, suspect) | |
| enigmatic(adjective, uncertain, doubtful, vague) |
For more, visit
Questionable on
Power Thesaurus
| APA | Smart Define. (2015). questionable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/questionable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "questionable thesaurus" https://smartdefine.org/questionable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, questionable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/questionable/thesaurus/synonyms>. |
| MLA | Smart Define. "questionable thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/questionable/thesaurus/synonyms> |