2
flinty
2
florid
2
flush(noun, health)
2
fond(adjective, kind, true, caring, loving)
2
hard(adjective, strong, firm, resolute, sturdy)
2
hard-core(adjective, close, correct, firm, honest)
2
headstrong(adjective, resolute, tenacious)
2
hidebound(obstinate, stubborn, unbending)
2
honest(adjective, close, strong, correct, firm)
2
husky
2
immutable(adjective, calm, strong, secure, firm)
2
impede(verb, stop, break, close, end)
2
implacable(adjective, hard, firm, determined, resolute)
2
incorruptible(adjective, close, correct, firm, honest)
2
inexorable(adjective, set, hard, determined, resolute)
2
infallible
2
intercept(verb, stop, break, close, end)
2
invariable(calm, strong, hard, solid, certain)
2
kibosh
2
long-lasting
11 years ago|16k views|share |citing 
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>