42 entries under hard topic. ×

7
refractory(adjective, tough, firm, difficult)
3
fixed(adjective, firm, solid, stiff)
3
stiff(adjective, tough, severe, firm)
2
inelastic(adjective, tough, severe, firm)
1
annealed(adjective, firm, solid, tense)
1
arthritic(adjective, firm, solid, tense)
1
benumbed(adjective, firm, solid, tense)
1
brittle(adjective, firm, solid, tense)
1
buckram(adjective, firm, solid, tense)
1
cemented(adjective, firm, solid, tense)
1
chilled(adjective, firm, solid, tense)
1
congealed(adjective, firm, solid, tense)
1
contracted(adjective, firm, solid, tense)
1
creaky(adjective, firm, solid, tense)
1
frozen(adjective, firm, solid, tense)
1
graceless(adjective, firm, solid, tense)
1
hardened(adjective, firm, solid, stiff)
1
immalleable(adjective, firm, solid, stiff)
1
impliable(adjective, firm, solid, stiff)
1
jelled(adjective, firm, solid, tense)
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APASmart Define. (2015). incompliant thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/incompliant/thesaurus/synonyms
ChicagoSmart Define. 2015. "incompliant thesaurus" https://smartdefine.org/incompliant/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, incompliant thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/incompliant/thesaurus/synonyms>.
MLASmart Define. "incompliant thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/incompliant/thesaurus/synonyms>