Synonyms|905Antonyms|165|Broader|8Narrower|0Related|298

105 entries under strong topic. ×

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stated(certain, definite, resolved, unalterable)
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steel(adjective, hard, tough, sturdy)
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stipulated(certain, definite, resolved, unalterable)
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thick(adjective, hard, tough, sturdy)
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tough inflexible(expression, hard, tough, sturdy)
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APASmart Define. (2016). obdurate thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/obdurate/thesaurus/synonyms
ChicagoSmart Define. 2016. "obdurate thesaurus" https://smartdefine.org/obdurate/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, obdurate thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/obdurate/thesaurus/synonyms>.
MLASmart Define. "obdurate thesaurus" 23 March 2016. Web. 27 September 2026. <https://smartdefine.org/obdurate/thesaurus/synonyms>