Synonyms|250Antonyms|32|Broader|4Narrower|1Related|25

24 entries under noun topic. ×

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simpleness
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simplicity
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slackening
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stillness
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APASmart Define. (2015). rigorousness thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/rigorousness/thesaurus/antonyms
ChicagoSmart Define. 2015. "rigorousness thesaurus" https://smartdefine.org/rigorousness/thesaurus/antonyms (accessed September 29, 2026).
HarvardSmart Define 2015, rigorousness thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/rigorousness/thesaurus/antonyms>.
MLASmart Define. "rigorousness thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/rigorousness/thesaurus/antonyms>