4
earnest(adjective, strong, sensible, steady, resolute)
4
gallant(adjective, vigorous, noble, courageous, fearless)
4
gutsy(adjective, determined, bold, resolute, brave)
4
intrepid(adjective, firm, determined, vigorous, noble)
4
lasting(adjective, calm, strong, firm, solid)
4
loving(adjective, close, kind, correct, firm)
4
noble(vigorous, courageous, virile)
4
powerful(adjective, strong, sound, tough, fit)
4
relentless(adjective, strong, tough, firm, determined)
4
settled(adjective, strong, flat, firm, sensible)
4
single-minded(adjective, keen, firm, sensible, solid)
4
steely(adjective, set, hard, stiff, resolute)
4
tried(adjective, good, close, strong, correct)
4
unchanging(adjective, close, correct, firm, honest)
4
uncompromising(adjective, clear, tough, severe, firm)
4
well-built(adjective, calm, strong, sound, secure)
4
zealous(adjective, clear, kind, tough, severe)
3
bullheaded(adjective, resolute, tenacious)
3
certain(adjective, good, strong, firm, honest)
3
check(verb, stop, end, halt, finish)
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APASmart Define. (2015). staunch thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/staunch/thesaurus/synonyms
ChicagoSmart Define. 2015. "staunch thesaurus" https://smartdefine.org/staunch/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, staunch thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/staunch/thesaurus/synonyms>.
MLASmart Define. "staunch thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/staunch/thesaurus/synonyms>