1
prepared(adjective, hard, unfeeling, unsympathetic, hardened)
1
purposeful(adjective, determined, serious, resolute, persistent)
1
resistant(adjective, hard, unfeeling, unsympathetic, prepared)
1
resolute(adjective, serious, persistent, unwavering, gritty)
1
resolved(adjective, serious, resolute, persistent, unwavering)
1
seasoned(adjective, hard, unfeeling, unsympathetic, prepared)
1
serious(adjective, resolute, persistent, unwavering, gritty)
1
set(adjective, serious, resolute, persistent, unwavering)
1
set on(expression, adjective, serious, resolute, persistent)
1
settled(adjective, serious, resolute, persistent, unwavering)
1
single-minded(adjective, serious, resolute, persistent, unwavering)
1
solid(adjective, serious, resolute, persistent, pat)
1
steadfast(adjective, serious, resolute, persistent, unwavering)
1
steeled(adjective, hard, unfeeling, unsympathetic, prepared)
1
strong-minded(adjective, determined, serious, resolute, persistent)
1
strong-willed(adjective, serious, resolute, persistent, unwavering)
1
tenacious(adjective, serious, resolute, persistent, unwavering)
1
thick-skinned(adjective, hard, unfeeling, unsympathetic, hardened)
1
toughened(adjective, hard, unfeeling, unsympathetic, hardened)
1
unashamed(adjective, hard, unfeeling, unsympathetic, prepared)
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APASmart Define. (2011). hard-as-nails thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hard-as-nails/thesaurus/synonyms
ChicagoSmart Define. 2011. "hard-as-nails thesaurus" https://smartdefine.org/hard-as-nails/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2011, hard-as-nails thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hard-as-nails/thesaurus/synonyms>.
MLASmart Define. "hard-as-nails thesaurus" 24 May 2011. Web. 28 September 2026. <https://smartdefine.org/hard-as-nails/thesaurus/synonyms>