- Definitions|2
- Thesaurus|1.5k
- Abbreviations|0
7 entries under reasonable topic. ×
| unlikely(adjective, unsound, likely, unbelievable) | |
| implausible(adjective, unsound, unbelievable, plausible) | |
| inconceivable(adjective, unsound, unbelievable, imaginable) | |
| imcomprehensible | |
| incogitable | |
| insupposable | |
| unknowable |
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| APA | Smart Define. (2015). credible thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/credible/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "credible thesaurus" https://smartdefine.org/credible/thesaurus/antonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, credible thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/credible/thesaurus/antonyms>. |
| MLA | Smart Define. "credible thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/credible/thesaurus/antonyms> |