226 entries under firm topic. ×

4
unquestioning(adjective, set, clear, complete, warm)
3
accurate(adjective, close, complete, correct)
3
bound(adjective, strong, tough, flat)
3
bullheaded(adjective, tough, determined, resolute)
3
contumacious(adjective, tough, persistent, obstinate)
3
die-hard(adjective, honest, determined, unreasonable)
3
equable(adjective, calm, strong, secure)
3
honest(adjective, close, strong, open, correct)
3
intense(adjective, clear, tough, severe, keen)
3
pigheaded(adjective, tough, determined, usual)
3
recalcitrant(adjective, tough, persistent, obstinate)
3
straight(adjective, close, correct, honest)
3
strong-minded(adjective, determined, fixed, serious)
3
tried(adjective, good, close, strong, correct)
3
tried and true(expression, adjective, idiom, close, strong)
3
true blue(expression, adjective, idiom, keen)
3
uncompliant(adjective, determined, unreasonable, grim)
3
upright(adjective, close, strong, correct)
2
cantankerous(tough, persistent, obstinate, stubborn)
2
close(adjective, correct, true, fixed)
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APASmart Define. (2016). steadfast thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/steadfast/thesaurus/synonyms
ChicagoSmart Define. 2016. "steadfast thesaurus" https://smartdefine.org/steadfast/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, steadfast thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/steadfast/thesaurus/synonyms>.
MLASmart Define. "steadfast thesaurus" 11 March 2016. Web. 25 September 2026. <https://smartdefine.org/steadfast/thesaurus/synonyms>