Synonyms|119Antonyms|38|Broader|0Narrower|0Related|84

42 entries under obstinate topic. ×

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unrelenting(hard, resolute, rigid, inflexible, strict)
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unyielding(hard, rigid, inflexible, strict)
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APASmart Define. (2015). hard-and-fast thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/hard-and-fast/thesaurus/synonyms
ChicagoSmart Define. 2015. "hard-and-fast thesaurus" https://smartdefine.org/hard-and-fast/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, hard-and-fast thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/hard-and-fast/thesaurus/synonyms>.
MLASmart Define. "hard-and-fast thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/hard-and-fast/thesaurus/synonyms>