Synonyms|131Antonyms|64|Broader|0Narrower|0Related|90

43 entries under hard-and-fast topic. ×

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unmovable(inflexible, intent)
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unqualified(inflexible, intent)
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unwavering(inflexible, intent)
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APASmart Define. (2015). cast-iron thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/cast-iron/thesaurus/synonyms
ChicagoSmart Define. 2015. "cast-iron thesaurus" https://smartdefine.org/cast-iron/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, cast-iron thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/cast-iron/thesaurus/synonyms>.
MLASmart Define. "cast-iron thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/cast-iron/thesaurus/synonyms>