202 entries under firm topic. ×

3
certain(adjective, good, strong, honest)
3
durable(adjective, calm, strong, sound, secure)
3
hale(adjective, health, strong, sound, tough)
3
muscular(adjective, strong, sound, tough, fit)
3
patient(adjective, strong, determined, steady)
3
strict(adjective, close, set, strong, correct)
3
tight(adjective, strong, tough, solid)
3
tried and true(expression, adjective, idiom, close, correct)
3
true blue(expression, adjective, idiom, keen)
3
unmoved(adjective, cold, indifferent, unyielding)
2
bound(adjective, strong, tough, flat)
2
calm(adjective, strong, secure, sensible)
2
changeless(adjective, solid, stable, fixed)
2
definite(adjective, good, strong, solid)
2
hard(adjective, strong, resolute, sturdy)
2
hard-core(adjective, close, correct, honest)
2
honest(adjective, close, strong, correct)
2
immutable(adjective, calm, strong, secure)
2
implacable(adjective, hard, determined, resolute)
2
incorruptible(adjective, close, correct, honest)
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APASmart Define. (2015). staunch thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/staunch/thesaurus/synonyms
ChicagoSmart Define. 2015. "staunch thesaurus" https://smartdefine.org/staunch/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, staunch thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/staunch/thesaurus/synonyms>.
MLASmart Define. "staunch thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/staunch/thesaurus/synonyms>