- Definitions|1
- Thesaurus|229
- Abbreviations|0
28 entries under certain topic. ×
| incontrovertible(adjective, ideal, all time, the best) | |
| indisputable(adjective, ideal, all time, the best) | |
| undeniable(adjective, ideal, all time, the best) | |
| incontestable(adjective, ideal, all time, the best) | |
| unquestionable(adjective, ideal, all time, the best) | |
| certain(adjective, ideal, all time, the best) | |
| irrefutable(adjective, definite, precise, sure) | |
| sure(adjective, ideal, all time, the best) | |
| unequivocal(adjective, ideal, all time, the best) | |
| absolute(adjective, definite, precise, sure) | |
| indubitable(adjective, undoubted) | |
| clear(adjective, definite, precise, sure) | |
| decisive(adjective, definite, precise, sure) | |
| definite(adjective, precise, sure, decisive) | |
| undoubted | |
| assured | |
| convinced | |
| doubtless(adjective, adverb) | |
| positive | |
| unmistakable(adjective, definite, precise, sure) |
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| APA | Smart Define. (2015). irrefragable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/irrefragable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "irrefragable thesaurus" https://smartdefine.org/irrefragable/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, irrefragable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/irrefragable/thesaurus/synonyms>. |
| MLA | Smart Define. "irrefragable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/irrefragable/thesaurus/synonyms> |