Synonyms|19Antonyms|1|Broader|13Narrower|0Related|0
2
harsh
1
ambitious
1
austere
1
behaviour
1
challenging
1
characteristic
1
chilly
1
explicit
1
piercing
1
property
1
puritanical
1
severe
1
strict
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ChicagoSmart Define. 2011. "rigourous thesaurus" https://smartdefine.org/rigourous/thesaurus/broader (accessed September 21, 2026).
HarvardSmart Define 2011, rigourous thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/rigourous/thesaurus/broader>.
MLASmart Define. "rigourous thesaurus" 2 May 2011. Web. 21 September 2026. <https://smartdefine.org/rigourous/thesaurus/broader>