- Definitions|2
- Thesaurus|155
- Abbreviations|0
| supreme(adjective, certain) | |
| true(adjective, certain) | |
| trustworthy(adjective, certain) | |
| unambiguous(adjective, certain) | |
| unerring(adjective, certain, unquestionable, acknowledged, undoubted) | |
| abiding(certain, unquestionable) | |
| accurate(certain, absolute, unquestionable, indisputable, unmistakable) | |
| actual | |
| ascertained(adjective, certain) | |
| assured(certain, unquestionable, acknowledged, undoubted) | |
| bound(certain, unquestionable) | |
| certes | |
| changeless(certain, unquestionable) | |
| confirmable(adjective, certain) | |
| constant(certain, unquestionable) | |
| convinced(certain, unquestionable) | |
| convincing(certain, unquestionable) | |
| demonstrable(adjective, certain) | |
| dependable | |
| doubtless(certain, unquestionable) |
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| APA | Smart Define. (2013). undisputable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/undisputable/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "undisputable thesaurus" https://smartdefine.org/undisputable/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2013, undisputable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/undisputable/thesaurus/synonyms>. |
| MLA | Smart Define. "undisputable thesaurus" 28 June 2013. Web. 24 September 2026. <https://smartdefine.org/undisputable/thesaurus/synonyms> |