Synonyms|1kAntonyms|253|Broader|5Narrower|1Related|546
2
austere
2
exact
2
severe
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APASmart Define. (2016). rigorous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/rigorous/thesaurus/broader
ChicagoSmart Define. 2016. "rigorous thesaurus" https://smartdefine.org/rigorous/thesaurus/broader (accessed September 22, 2026).
HarvardSmart Define 2016, rigorous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/rigorous/thesaurus/broader>.
MLASmart Define. "rigorous thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/rigorous/thesaurus/broader>