Synonyms|24Antonyms|1|Broader|0Narrower|0Related|0

24 entries under adjective topic. ×

1
hard as nails(expression, idiom, strong, hard)
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brawny(strong, hard, solid, stiff)
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cohesive(strong, hard, solid, stiff)
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conditioned(strong, hard, solid, stiff)
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dense(strong, hard, solid, stiff)
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fibrous(strong, hard, solid, stiff)
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fit(strong, hard, solid, stiff)
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flinty(strong, hard, solid, stiff)
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hard-bitten(strong, hard, solid, stiff)
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indigestible(strong, hard, solid, stiff)
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leathery(strong, hard, solid, stiff)
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lusty(strong, hard, solid, stiff)
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molded(strong, hard, solid, stiff)
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resilient(strong, hard, solid, stiff)
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resistant(strong, hard, solid, stiff)
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rigid(strong, hard, solid, stiff)
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seasoned(strong, hard, solid, stiff)
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steeled(strong, hard, solid, stiff)
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stiff(strong, hard, solid, sturdy)
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strong(hard, solid, stiff, sturdy)
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APASmart Define. (2011). tough as nails thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/tough_as_nails/thesaurus/synonyms
ChicagoSmart Define. 2011. "tough as nails thesaurus" https://smartdefine.org/tough_as_nails/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2011, tough as nails thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/tough_as_nails/thesaurus/synonyms>.
MLASmart Define. "tough as nails thesaurus" 24 May 2011. Web. 29 September 2026. <https://smartdefine.org/tough_as_nails/thesaurus/synonyms>