212 entries under strong topic. ×

5
pertinacious(adjective, tough, firm, determined)
5
purposeful(adjective, tough, keen, firm)
5
rugged(adjective, sound, fit, solid)
5
unshaken(adjective, flat, firm, solid)
4
able-bodied(adjective, sound, tough, fit)
4
adamant(adjective, tough, flat, firm)
4
consistent(firm, solid, certain, steady)
4
decisive(adjective, good, solid, determined)
4
earnest(adjective, sensible, steady, resolute)
4
lasting(adjective, calm, firm, solid)
4
powerful(adjective, sound, tough, fit)
4
relentless(adjective, tough, firm, determined)
4
settled(adjective, flat, firm, sensible)
4
tried(adjective, good, close, correct)
4
well-built(adjective, calm, sound, secure)
3
certain(adjective, good, firm, honest)
3
doughty(resolute, courageous, fearless, plucky)
3
durable(adjective, calm, sound, secure)
3
hale(adjective, health, sound, tough)
3
healthy(adjective, health, sound, tough)
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APASmart Define. (2015). staunch thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/staunch/thesaurus/synonyms
ChicagoSmart Define. 2015. "staunch thesaurus" https://smartdefine.org/staunch/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, staunch thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/staunch/thesaurus/synonyms>.
MLASmart Define. "staunch thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/staunch/thesaurus/synonyms>