306 entries under firm topic. ×

3
substantial(adjective, calm, strong, hard, secure)
3
undeviating(adjective, strong, severe, flat)
3
undoubted(adjective, clear, sound, solid)
3
unfaltering(adjective, solid, certain, steady)
3
unflappable(adjective, solid, certain, usual)
3
unqualified(adjective, clear, strong, flat)
3
unshaken(adjective, clear, strong, flat)
3
unswerving(adjective, strong, tough, solid)
2
abiding(adjective, calm, strong, secure, flat)
2
brace(noun, verb, hold, calm, close)
2
brittle(adjective, hard, solid, stiff)
2
buttress(verb, support, calm, close, fix)
2
calcified(adjective, close, solid, contract)
2
callous(verb, adjective, close, fix, hard)
2
cemented(verb, adjective, strong, hard)
2
compressed(verb, adjective, hard, tough, slight)
2
concentrated(verb, adjective, strong, hard, tough)
2
dead set on(expression, adjective, idiom, strong, secure)
2
earnest(adjective, severe, honest, thoughtful)
2
equable(adjective, calm, strong, secure)
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APASmart Define. (2016). set thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/set/thesaurus/synonyms
ChicagoSmart Define. 2016. "set thesaurus" https://smartdefine.org/set/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, set thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/set/thesaurus/synonyms>.
MLASmart Define. "set thesaurus" 1 March 2016. Web. 23 September 2026. <https://smartdefine.org/set/thesaurus/synonyms>