112 entries under adjective topic. ×

1
prepared(hard, unfeeling, unsympathetic, hardened)
1
purposeful(determined, serious, resolute, persistent)
1
resistant(hard, unfeeling, unsympathetic, prepared)
1
resolute(serious, persistent, unwavering, gritty)
1
resolved(serious, resolute, persistent, unwavering)
1
seasoned(hard, unfeeling, unsympathetic, prepared)
1
serious(resolute, persistent, unwavering, gritty)
1
set(serious, resolute, persistent, unwavering)
1
set on(expression, serious, resolute, persistent)
1
settled(serious, resolute, persistent, unwavering)
1
single-minded(serious, resolute, persistent, unwavering)
1
solid(serious, resolute, persistent, pat)
1
steadfast(serious, resolute, persistent, unwavering)
1
steeled(hard, unfeeling, unsympathetic, prepared)
1
strong-minded(determined, serious, resolute, persistent)
1
strong-willed(serious, resolute, persistent, unwavering)
1
tenacious(serious, resolute, persistent, unwavering)
1
thick-skinned(hard, unfeeling, unsympathetic, hardened)
1
toughened(hard, unfeeling, unsympathetic, hardened)
1
unashamed(hard, unfeeling, unsympathetic, prepared)
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APASmart Define. (2011). hard-as-nails thesaurus. Retrieved September 29, 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 29, 2026).
HarvardSmart Define 2011, hard-as-nails thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/hard-as-nails/thesaurus/synonyms>.
MLASmart Define. "hard-as-nails thesaurus" 24 May 2011. Web. 29 September 2026. <https://smartdefine.org/hard-as-nails/thesaurus/synonyms>