2
intolerance(noun, severity, harshness, strictness, exactness)
2
irritation(noun, trouble, blow, distress, care)
2
literalness(noun, precision, accuracy)
2
low temperature(noun, expression, coldness, coolness)
2
luridness
2
mathematical precision(expression, idiom, truth)
2
nip(noun, coldness, coolness)
2
nippiness(noun, coldness, coolness)
2
obdurateness(obstinacy, stubbornness)
2
particularity(noun, care, exactness)
2
plight(noun, difficulty, mess, hardship, jam)
2
precisianism
2
puritanism(severity, strictness, austerity, sternness, self-discipline)
2
rawness(noun, coldness, coolness, nip)
2
refinement(noun, distinction, precision)
2
relentlessness(harshness, obstinacy, stubbornness, sternness)
2
ruggedness
2
scrupulousness(noun, correctness, precision, accuracy)
2
self-denial(severity, strictness, austerity, sternness, self-discipline)
2
stubbornness
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APASmart Define. (2015). rigor thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/rigor/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigor thesaurus" https://smartdefine.org/rigor/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, rigor thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/rigor/thesaurus/synonyms>.
MLASmart Define. "rigor thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/rigor/thesaurus/synonyms>