163 entries under solid topic. ×

1
brick-wall(adjective, calm, strong, secure, firm)
1
calm(adjective, quiet, strong, cool, secure)
1
candid(adjective, good, strong, complete, warm)
1
cinched(adjective, certain, definite, distinct)
1
clinched(adjective, certain, definite, distinct)
1
consistent(adjective, strong, reasonable, flat, firm)
1
cool(adjective, calm, quiet, firm)
1
dead set on(expression, idiom, strong, firm)
1
dedicated(adjective, complete, warm, firm, honest)
1
deep-rooted(adjective, calm, strong, steady)
1
devoted(adjective, good, close, strong, correct)
1
equable(adjective, calm, strong, secure, firm)
1
fastened(adjective, strong, firm, true)
1
fixed resistant(expression, calm, strong, substantial)
1
fortified(adjective, strong, firm, true)
1
high-principled(adjective, good, strong, honest)
1
honorable(adjective, close, strong, correct, firm)
1
immovable(adjective, strong, firm, true)
1
impeccable(good, strong, steady, consistent)
1
intense(adjective, firm, steady, stable)
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APASmart Define. (2016). sure thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sure/thesaurus/synonyms
ChicagoSmart Define. 2016. "sure thesaurus" https://smartdefine.org/sure/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, sure thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sure/thesaurus/synonyms>.
MLASmart Define. "sure thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/sure/thesaurus/synonyms>