79 entries under hard topic. ×

8
hardened(adjective, characteristic, quality, careless)
7
steely(adjective, strong, tough, determined)
7
sturdy(adjective, strong, tough, firm)
6
indurate(adjective, mean, determined, resolute)
6
stony(adjective, careless, cold, indifferent)
5
casehardened(adjective, characteristic, unfeeling, unsympathetic)
4
rigorous(adjective, strong, tough, severe)
3
callous(adjective, mean, tough, severe)
3
confirmed(adjective, characteristic, quality, severe)
3
hard-hearted(adjective, characteristic, quality, mean)
3
harsh(adjective, mean, strong, tough)
3
ruthless(adjective, appearance, strong, severe)
2
austere(adjective, appearance, strong, tough)
2
authoritarian(adjective, strong, tough, severe)
2
case-hardened(adjective, careless, indifferent, cruel)
2
hard-boiled(adjective, mean, strong, tough)
2
hard-line(adjective, strong, tough, rough)
2
indurated(adjective, careless, indifferent, cruel)
2
unsubmissive(adjective, unfeeling, unsympathetic, hardened)
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APASmart Define. (2015). stubborn thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/stubborn/thesaurus/synonyms
ChicagoSmart Define. 2015. "stubborn thesaurus" https://smartdefine.org/stubborn/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, stubborn thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/stubborn/thesaurus/synonyms>.
MLASmart Define. "stubborn thesaurus" 3 August 2015. Web. 28 September 2026. <https://smartdefine.org/stubborn/thesaurus/synonyms>