- Definitions|2
- Thesaurus|770
- Abbreviations|0
| undisputable(adjective, certain, true) | |
| unmistakeable | |
| unqualified | |
| veritable(adjective, physical, material, certain, absolute) | |
| absolutely certain(expression, adjective, solid, certain, sure) | |
| acknowledged | |
| adducible | |
| admissible | |
| admitting no question(expression, idiom) | |
| airtight(adjective, certain) | |
| all out(expression, definite, precise, sure, decisive) | |
| apodictic(adjective, demonstration) | |
| at first hand(expression, idiom) | |
| attestative | |
| attestive | |
| axiomatic | |
| binding(sound, reasonable, certain, rational, definite) | |
| bona fide(expression, sound, reasonable, material, rational) | |
| capable of being touched | |
| cinched(adjective, solid, certain, sure, confident) |
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| APA | Smart Define. (2015). irrefutable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/irrefutable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "irrefutable thesaurus" https://smartdefine.org/irrefutable/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, irrefutable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/irrefutable/thesaurus/synonyms>. |
| MLA | Smart Define. "irrefutable thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/irrefutable/thesaurus/synonyms> |