36 entries under adjective topic. ×
| believable(unreasonable, plausible) | |
| credible(unsound, believable, plausible) | |
| possible | |
| likely | |
| plausible(reasonable, unreasonable, believable) | |
| imaginable(plausible, unimaginable) | |
| real | |
| creditable | |
| probable | |
| reasonable(foolish, plausible) | |
| conceivable(reasonable, easy, implausible, plausible) | |
| convincing | |
| feasible | |
| thinkable | |
| authentic | |
| ordinary | |
| potential | |
| reliable | |
| tenable(plausible, untenable) | |
| truthful |
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| APA | Smart Define. (2016). unbelievable thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unbelievable/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "unbelievable thesaurus" https://smartdefine.org/unbelievable/thesaurus/antonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, unbelievable thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unbelievable/thesaurus/antonyms>. |
| MLA | Smart Define. "unbelievable thesaurus" 30 March 2016. Web. 29 September 2026. <https://smartdefine.org/unbelievable/thesaurus/antonyms> |