423 entries under adjective topic. ×

1
buckram(hard, firm, solid, stiff)
1
bullheaded(determined, resolute, uncompromising, unshakeable)
1
callused
1
cantankerous(hard, tough, severe, cruel)
1
careless(hard, indifferent, cruel, apathetic)
1
cemented(set, hard, firm, solid)
1
chastened
1
chilled(verb, hard, firm, solid)
1
churlish(hard, tough, severe, cruel)
1
classic
1
close(hard, tough, solid, rigid)
1
clotted
1
cold fish(expression, hard, tough, severe)
1
collected(cool, blank, aloof, unemotional)
1
compact(set, strong, hard, tough)
1
composed(cool, blank, aloof, unemotional)
1
concentrated(verb, set, strong, hard)
1
concrete(set, hard, tough, firm)
1
contracted(hard, firm, solid, stiff)
1
creaky(hard, firm, solid, stiff)
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APASmart Define. (2016). hardened thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/hardened/thesaurus/synonyms
ChicagoSmart Define. 2016. "hardened thesaurus" https://smartdefine.org/hardened/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, hardened thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/hardened/thesaurus/synonyms>.
MLASmart Define. "hardened thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/hardened/thesaurus/synonyms>