57 entries under strong topic. ×

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firm(adjective, hard, tough, severe)
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hard(adjective, tough, severe, harsh)
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harsh(adjective, hard, tough, severe)
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heavy(adjective, hard, tough, sturdy)
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immovable(adjective, hard, tough, sturdy)
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indomitable(adjective, hard, tough, sturdy)
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insensible(adjective, hard, tough, sturdy)
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obdurate(adjective, hard, tough, sturdy)
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robust(adjective, hard, tough, sturdy)
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rugged(adjective, hard, tough, sturdy)
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steel(adjective, hard, tough, sturdy)
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strict(adjective, hard, tough, severe)
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sturdy(adjective, hard, tough, rugged)
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thick(adjective, hard, tough, sturdy)
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tough inflexible(expression, hard, tough, sturdy)
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unbending(adjective, hard, tough, sturdy)
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unyielding(adjective, hard, tough, severe)
<123>
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APASmart Define. (2016). mortified thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/mortified/thesaurus/synonyms
ChicagoSmart Define. 2016. "mortified thesaurus" https://smartdefine.org/mortified/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, mortified thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/mortified/thesaurus/synonyms>.
MLASmart Define. "mortified thesaurus" 10 March 2016. Web. 26 September 2026. <https://smartdefine.org/mortified/thesaurus/synonyms>