- Definitions|2
- Thesaurus|1.5k
- Abbreviations|0
| confirmable | |
| confirmed(adjective, solid, certain, real, sure) | |
| conspicuous(adjective, manifestation) | |
| correct(adjective, sound, right, honest, plain) | |
| credible | |
| crystal-clear | |
| crystal clear | |
| demonstratable | |
| denominational(adjective, categorical) | |
| dependable(adjective, correct, right, flat, honest) | |
| direct(adjective, clear, correct, right, honest) | |
| double-checked(set, certain, unquestionable, indisputable, undeniable) | |
| down | |
| ensured(adjective, solid, certain, sure, confident) | |
| exact(adjective, correct, right, honest, pure) | |
| fathomable(adjective, understandable) | |
| final(total, certain, full, definite, absolute) | |
| firm(clear, material, certain, definite, sure) | |
| fitting(adjective, correct, right, honest, perfect) | |
| flat out(total, plain, full, absolute, unqualified) |
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| APA | Smart Define. (2016). indubitable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/indubitable/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "indubitable thesaurus" https://smartdefine.org/indubitable/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, indubitable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/indubitable/thesaurus/synonyms>. |
| MLA | Smart Define. "indubitable thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/indubitable/thesaurus/synonyms> |