Synonyms|250Antonyms|32|Broader|4Narrower|1Related|25
2
detail(noun, distinction, refinement, precision, rigor)
2
difficulty(noun, discipline, harshness, strictness, laboriousness)
2
discipline(noun, severity, strictness)
2
ghastliness
2
gruesomeness
2
intensity(noun, severity)
2
keenness(noun, severity)
2
laboriousness(noun, difficulty, strenuousness)
2
luridness
2
oppressiveness(noun, severity)
2
perfection
2
refinement(noun, distinction, precision, rigor)
2
ruthlessness(noun, harshness, sternness)
2
subtlety(noun, distinction, refinement, precision, rigor)
1
abrasiveness
1
abruptness(noun, severity)
1
astringency(noun, severity)
1
authoritarianism(noun, severity)
1
awkwardness(difficulty, laboriousness, strenuousness)
1
bleakness(noun, severity)
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APASmart Define. (2015). rigorousness thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/rigorousness/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigorousness thesaurus" https://smartdefine.org/rigorousness/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, rigorousness thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/rigorousness/thesaurus/synonyms>.
MLASmart Define. "rigorousness thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/rigorousness/thesaurus/synonyms>