164 entries under solid topic. ×

8
stiff(adjective, set, strong, hard, firm)
8
true-blue(adjective, good, close, strong, kind)
7
robust(adjective, health, strong, sound, tough)
7
set(adjective, calm, strong, secure, tough)
7
unchangeable(adjective, calm, strong, secure, flat)
7
vigorous(adjective, health, strong, sound, tough)
6
hearty(adjective, health, strong, sound, tough)
6
substantial(adjective, calm, strong, sound, secure)
5
allegiant(adjective, close, correct, continue, firm)
5
enduring(adjective, calm, close, strong, sound)
5
rugged(adjective, strong, sound, fit)
5
unshaken(adjective, strong, flat, firm)
4
able-bodied(adjective, strong, sound, tough, fit)
4
consistent(strong, firm, certain, steady)
4
decisive(adjective, good, strong, determined)
4
lasting(adjective, calm, strong, firm)
4
powerful(adjective, strong, sound, tough, fit)
4
settled(adjective, strong, flat, firm, sensible)
4
single-minded(adjective, keen, firm, sensible)
4
tried(adjective, good, close, strong, correct)
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APASmart Define. (2015). staunch thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/staunch/thesaurus/synonyms
ChicagoSmart Define. 2015. "staunch thesaurus" https://smartdefine.org/staunch/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, staunch thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/staunch/thesaurus/synonyms>.
MLASmart Define. "staunch thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/staunch/thesaurus/synonyms>