- Definitions|2
- Thesaurus|5.1k
- Abbreviations|0
| certain(adjective, valid, undoubtable) | |
| sure(adjective, clear, honest, certain, definite) | |
| confident | |
| clear(adjective, honest) | |
| definite(adjective, clear, honest) | |
| unambiguous | |
| reliable(adjective, clear, honest) | |
| determined(verb, adjective, clear, honest) | |
| unquestionable(adjective, clear, honest) | |
| positive(adjective, clear, honest) | |
| self-confident | |
| assured(verb, humble) | |
| doubtless(adjective, adverb, clear, honest, likely) | |
| probable(adjective, clear, honest) | |
| trustworthy | |
| undoubted(adjective, clear, honest) | |
| well-documented | |
| believable(adjective, clear, honest) | |
| decisive | |
| indisputable |
For more, visit
Dubious on
Power Thesaurus
| APA | Smart Define. (2016). dubious thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/dubious/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "dubious thesaurus" https://smartdefine.org/dubious/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, dubious thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/dubious/thesaurus/antonyms>. |
| MLA | Smart Define. "dubious thesaurus" 4 March 2016. Web. 23 September 2026. <https://smartdefine.org/dubious/thesaurus/antonyms> |