2
martial
2
mettlesome(adjective, determined, courageous, fearless, plucky)
2
obstruct(verb, stop, break, close, end)
2
patriotic(adjective, close, correct, firm, honest)
2
permanent(calm, strong, firm, solid, true)
2
perseverant
2
persisting
2
pious(adjective, spiritual, devoted, religious)
2
positive(adjective, good, strong, solid, intense)
2
predictable(good, strong, solid, steady, consistent)
2
prevent(verb, stop, break, close, end)
2
rocky
2
ruthless(adjective, resolute)
2
seaworthy
2
serious(adjective, strong, firm, sensible, determined)
2
sinewy(adjective, strong, sound, tough, fit)
2
slow(verb, stop, stem)
2
snug
2
special
2
stay(verb, stop, break, close, end)
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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>