Synonyms|250Antonyms|32|Broader|4Narrower|1Related|25
4
relentlessness(noun, harshness, sternness)
4
rigourousness
4
sternness(noun, easy, condition, discipline, firmness)
4
toughness(noun, easy, difficulty, condition, discipline)
3
adversity(noun, difficulty, laboriousness, strenuousness)
3
correctness(noun, severity, precision, accuracy, fastidiousness)
3
delicacy(noun, fastidiousness)
3
fastidiousness(noun, fastidiousness)
3
particularity(noun, fastidiousness)
3
preciseness(noun, severity, correctness, precision, accuracy)
3
severeness
3
sharpness(noun, discipline, firmness, severity, harshness)
2
acerbity(noun, discipline, firmness, severity, harshness)
2
acuteness(noun, severity)
2
arduousness(noun, difficulty, discipline, strictness, laboriousness)
2
badness
2
brutality(noun, harshness, sternness)
2
carefulness(noun, correctness, precision, accuracy, exactness)
2
cogency
2
complication(difficulty, laboriousness, strenuousness)
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APASmart Define. (2015). rigorousness thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/rigorousness/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigorousness thesaurus" https://smartdefine.org/rigorousness/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, rigorousness thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/rigorousness/thesaurus/synonyms>.
MLASmart Define. "rigorousness thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/rigorousness/thesaurus/synonyms>