185 entries under hard topic. ×

18
tough(adjective, mean, clear, strong)
16
grim(adjective, strong, tough, severe)
16
severe(adjective, clear, strong, tough)
15
hard-nosed(adjective, mean, clear, strong)
14
dogged(adjective, mean, tough, firm)
14
stern(adjective, tough, severe, rough)
12
intractable(adjective, tough, rough, firm)
12
iron(adjective, mean, strong, tough)
12
steely(adjective, strong, tough, firm)
10
harsh(adjective, mean, strong, tough)
10
set in stone(expression, adjective, idiom, mean)
10
stiff-necked(adjective, mean, strong, tough)
10
strict(adjective, strong, tough, severe)
8
rigorous(adjective, strong, tough, severe)
7
hanging tough(expression, adjective, mean, determined)
7
headstrong(adjective, tough, rough, harsh)
7
mulish(adjective, mean, strong, tough)
7
perverse(adjective, mean, tough, determined)
7
ruthless(adjective, rough, harsh, cruel)
6
callous(adjective, tough, rough, harsh)
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APASmart Define. (2016). unbending thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unbending/thesaurus/synonyms
ChicagoSmart Define. 2016. "unbending thesaurus" https://smartdefine.org/unbending/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, unbending thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unbending/thesaurus/synonyms>.
MLASmart Define. "unbending thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/unbending/thesaurus/synonyms>