- Definitions|1
- Thesaurus|214
- Abbreviations|0
| safe(adjective, certain) | |
| sound(adjective, certain) | |
| supreme(adjective, certain) | |
| trustworthy(adjective, certain) | |
| undoubted(adjective, certain) | |
| unimpeachable(set, certain, unquestionable, indisputable, unassailable) | |
| unmistakable(adjective, clear, certain, sure) | |
| verifiable(adjective, certain) | |
| actual(clear, certain, definite, sure, unquestionable) | |
| affirmative(clear, certain, sure) | |
| ascertained(adjective, certain) | |
| assured(clear, certain, sure) | |
| beyond dispute(expression, idiom) | |
| categorical(clear, certain, sure) | |
| cocksure(clear, certain, sure) | |
| cold(clear, certain, sure) | |
| complete(clear, certain, sure) | |
| concrete(clear, certain, sure) | |
| consummate(clear, certain, sure) | |
| convinced(clear, certain, sure) |
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| APA | Smart Define. (2013). inarguable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/inarguable/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "inarguable thesaurus" https://smartdefine.org/inarguable/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2013, inarguable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/inarguable/thesaurus/synonyms>. |
| MLA | Smart Define. "inarguable thesaurus" 28 June 2013. Web. 24 September 2026. <https://smartdefine.org/inarguable/thesaurus/synonyms> |