Synonyms|764Antonyms|160|Broader|11Narrower|12Related|1.3k

82 entries under solid topic. ×

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set in stone(expression, adjective, idiom, set, firm)
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unbreakable(adjective, strong, hard, firm)
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APASmart Define. (2016). hardened thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hardened/thesaurus/synonyms
ChicagoSmart Define. 2016. "hardened thesaurus" https://smartdefine.org/hardened/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, hardened thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hardened/thesaurus/synonyms>.
MLASmart Define. "hardened thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/hardened/thesaurus/synonyms>