- Definitions|2
- Thesaurus|849
- Abbreviations|0
| actuality | |
| assurance | |
| authenticity | |
| axiom | |
| belief | |
| certain | |
| evidence(noun, simplicity, brightness, certainty, purity) | |
| guarantee | |
| legibility(noun, simplicity, brightness, certainty, evidence) | |
| persuasion | |
| positiveness | |
| reality | |
| self-assurance | |
| surety | |
| truth | |
| verity | |
| lucidity(noun, quality, clear, understand, simplicity) | |
| precision(noun, simplicity, brightness, certainty, evidence) | |
| explicability(noun, simplicity, brightness, certainty, evidence) | |
| decision(noun, understanding, taste, judgment, bias) |
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| APA | Smart Define. (2016). clearness thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/clearness/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "clearness thesaurus" https://smartdefine.org/clearness/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, clearness thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/clearness/thesaurus/synonyms>. |
| MLA | Smart Define. "clearness thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/clearness/thesaurus/synonyms> |