113 entries under hard topic. ×

2
brittle(adjective, firm, stiff, tense)
2
fit(adjective, strong, sound, complete)
2
hard-bitten
2
hunk(noun, adjective, block, bar)
2
iron(adjective, set, strong, tough)
2
ossified(adjective, set, firm, heavy)
2
petrified(adjective, set, strong, firm)
2
sinewy(adjective, strong, sound, tough)
2
taut(adjective, strong, firm, substantial)
2
tense(adjective, firm, stiff, rigid)
2
thickened(adjective, set, firm, heavy)
2
wide(adjective, deep, fat, broad)
1
annealed(adjective, firm, stiff, tense)
1
arthritic(adjective, firm, stiff, tense)
1
benumbed(adjective, firm, stiff, tense)
1
buckram(adjective, firm, stiff, tense)
1
cemented(adjective, set, strong, firm)
1
chilled(adjective, firm, stiff, tense)
1
close-grained(adjective, close, set, tough)
1
contracted(adjective, firm, stiff, tense)
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APASmart Define. (2016). solid thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/solid/thesaurus/synonyms
ChicagoSmart Define. 2016. "solid thesaurus" https://smartdefine.org/solid/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, solid thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/solid/thesaurus/synonyms>.
MLASmart Define. "solid thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/solid/thesaurus/synonyms>