7
bold(adjective, firm, determined, vigorous, noble)
7
devout(adjective, kind, true, caring, loving)
7
robust(adjective, health, strong, sound, tough)
7
set(adjective, calm, strong, secure, tough)
7
unbending(adjective, clear, strong, tough, severe)
7
unchangeable(adjective, calm, strong, secure, flat)
7
vigorous(adjective, health, strong, sound, tough)
6
business-minded
6
committed(adjective, strong, kind, keen, firm)
6
fearless(adjective, determined, vigorous, steady, noble)
6
good(strong, consistent, trustworthy, steadfast, dependable)
6
halt(verb, stop, end, finish, slow)
6
hearty(adjective, health, strong, sound, tough)
6
obdurate(adjective, strong, tough, flat, firm)
6
substantial(adjective, calm, strong, sound, secure)
6
undaunted(adjective, firm, determined, vigorous, steady)
6
valiant(adjective, firm, determined, vigorous, noble)
5
allegiant(adjective, close, correct, continue, firm)
5
arrest(verb, stop, break, close, end)
5
decided(adjective, firm, intense, deliberate, determined)
11 years ago|16k views|share |citing 
APASmart Define. (2015). staunch thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/staunch/thesaurus/synonyms
ChicagoSmart Define. 2015. "staunch thesaurus" https://smartdefine.org/staunch/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, staunch thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/staunch/thesaurus/synonyms>.
MLASmart Define. "staunch thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/staunch/thesaurus/synonyms>