Synonyms|423Antonyms|32|Broader|7Narrower|13Related|105

93 entries under hard topic. ×

3
relentless(adjective, mean, determined, resolute)
3
stiff(adjective, set, strong, firm)
3
stiff-necked(adjective, mean, determined, stiff)
3
thick-skinned(adjective, mean, tough, harsh)
2
ossified(adjective, firm, solid, tense)
2
petrified(adjective, set, firm, solid)
2
solidified(adjective, set, firm, solid)
2
tough(adjective, mean, firm, harsh)
1
annealed(adjective, firm, solid, tense)
1
arthritic(adjective, firm, solid, stiff)
1
benumbed(adjective, firm, solid, tense)
1
brittle(adjective, firm, solid, tense)
1
buckram(adjective, firm, solid, stiff)
1
bullhead(adjective, mean, tough, harsh)
1
cemented(adjective, set, firm, solid)
1
chilled(adjective, firm, solid, tense)
1
cold fish(expression, adjective, mean, stubborn)
1
compressed(adjective, set, strong, firm)
1
congealed(adjective, set, firm, solid)
1
consolidated(adjective, set, strong, firm)
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ChicagoSmart Define. 2015. "indurate thesaurus" https://smartdefine.org/indurate/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, indurate thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/indurate/thesaurus/synonyms>.
MLASmart Define. "indurate thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/indurate/thesaurus/synonyms>