202 entries under firm topic. ×

5
decided(adjective, intense, deliberate, determined)
5
enduring(adjective, calm, close, strong, sound)
5
pertinacious(adjective, strong, tough, determined)
5
purposeful(adjective, strong, tough, keen)
5
strong-willed(adjective, intense, deliberate, determined)
5
unshaken(adjective, strong, flat, solid)
4
adamant(adjective, strong, tough, flat)
4
close(verb, adjective, stop, break, end)
4
consistent(strong, solid, certain, steady)
4
intrepid(adjective, determined, vigorous, noble)
4
lasting(adjective, calm, strong, solid)
4
loving(adjective, close, kind, correct)
4
powerful(adjective, strong, sound, tough, fit)
4
relentless(adjective, strong, tough, determined)
4
settled(adjective, strong, flat, sensible)
4
single-minded(adjective, keen, sensible, solid)
4
tried(adjective, good, close, strong, correct)
4
unchanging(adjective, close, correct, honest)
4
uncompromising(adjective, clear, tough, severe)
4
well-built(adjective, calm, strong, sound, secure)
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APASmart Define. (2015). staunch thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/staunch/thesaurus/synonyms
ChicagoSmart Define. 2015. "staunch thesaurus" https://smartdefine.org/staunch/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, staunch thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/staunch/thesaurus/synonyms>.
MLASmart Define. "staunch thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/staunch/thesaurus/synonyms>