| sureness(noun, confidence, certainty) | |
| surety(noun, confidence, assurance, certainty, undoubtedness) | |
| steadiness | |
| assurance(noun, mark, light, sign, reason) | |
| assuredness(noun, confidence, assurance, certainty, undoubtedness) | |
| certitude(noun, confidence, assurance, certainty, undoubtedness) | |
| accuracy | |
| articulateness | |
| belief | |
| certain | |
| clarity | |
| clearness | |
| decision | |
| distinctness | |
| explicability | |
| explicitness | |
| impression(noun, mark, pass, track, trail) | |
| indication(noun, feature, characteristic, drop, appearance) | |
| limpidity | |
| obviousness |
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| APA | Smart Define. (2015). proof thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/proof/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "proof thesaurus" https://smartdefine.org/proof/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, proof thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/proof/thesaurus/synonyms>. |
| MLA | Smart Define. "proof thesaurus" 22 December 2015. Web. 22 September 2026. <https://smartdefine.org/proof/thesaurus/synonyms> |