| rightness(noun, precision) | |
| rigourousness | |
| trouble(noun, blow, difficulty, distress, care) | |
| visitation(noun, trouble, blow, distress, care) | |
| abstinence(austerity, self-discipline, abstemiousness) | |
| accurateness(noun, precision, accuracy) | |
| annoyance(noun, trouble, blow, distress, care) | |
| arduousness(discipline, strictness) | |
| asceticism(severity, strictness, austerity, sternness, self-discipline) | |
| awkwardness | |
| badness | |
| bite(noun, coldness, coolness, nip) | |
| blight | |
| brutality(harshness, sternness) | |
| bummer(noun, trouble, difficulty, drag, hardship) | |
| callousness | |
| care(noun, trouble, blow, distress, burden) | |
| clumsiness | |
| cold | |
| coldness(noun, severity, harshness, strictness, coolness) |
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| APA | Smart Define. (2015). rigor thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/rigor/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rigor thesaurus" https://smartdefine.org/rigor/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, rigor thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/rigor/thesaurus/synonyms>. |
| MLA | Smart Define. "rigor thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/rigor/thesaurus/synonyms> |