166 entries under firm topic. ×

1
iron(adjective, strong, tough, solid)
1
lasting(calm, strong, solid, certain)
1
liege(adjective, honest, solid, pure)
1
loving(adjective, close, correct, honest)
1
nailed(adjective, calm, strong, secure)
1
obdurate(adjective, strong, tough, flat)
1
obedient(adjective, close, correct, honest)
1
on the level(expression, adjective, idiom, close, correct)
1
pat(solid, steady, absolute, necessary)
1
patriotic(adjective, close, correct, honest)
1
permanent(calm, strong, solid, true)
1
persevering(adjective, set, strong, tough, flat)
1
pushy(adjective, certain, confident, self-assured)
1
scrupulous(adjective, close, correct, honest)
1
set in stone(expression, adjective, idiom, calm, strong)
1
sincere(adjective, good, close, strong, correct)
1
solid as a rock(expression, adjective, idiom, calm, strong)
1
stabile(adjective, calm, strong, secure)
1
string along with(expression, adjective, idiom, close, correct)
1
tight(adjective, strong, tough, solid)
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APASmart Define. (2016). sure thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sure/thesaurus/synonyms
ChicagoSmart Define. 2016. "sure thesaurus" https://smartdefine.org/sure/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, sure thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sure/thesaurus/synonyms>.
MLASmart Define. "sure thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/sure/thesaurus/synonyms>