| intolerance(noun, severity, harshness, strictness, exactness) | |
| irritation(noun, trouble, blow, distress, care) | |
| literalness(noun, precision, accuracy) | |
| low temperature(noun, expression, coldness, coolness) | |
| luridness | |
| mathematical precision(expression, idiom, truth) | |
| nip(noun, coldness, coolness) | |
| nippiness(noun, coldness, coolness) | |
| obdurateness(obstinacy, stubbornness) | |
| particularity(noun, care, exactness) | |
| plight(noun, difficulty, mess, hardship, jam) | |
| precisianism | |
| puritanism(severity, strictness, austerity, sternness, self-discipline) | |
| rawness(noun, coldness, coolness, nip) | |
| refinement(noun, distinction, precision) | |
| relentlessness(harshness, obstinacy, stubbornness, sternness) | |
| ruggedness | |
| scrupulousness(noun, correctness, precision, accuracy) | |
| self-denial(severity, strictness, austerity, sternness, self-discipline) | |
| stubbornness |
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| APA | Smart Define. (2015). rigor thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/rigor/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rigor thesaurus" https://smartdefine.org/rigor/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, rigor thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/rigor/thesaurus/synonyms>. |
| MLA | Smart Define. "rigor thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/rigor/thesaurus/synonyms> |