137 entries under firm topic. ×

10
straight(adjective, adverb, close, direct, correct)
10
tireless(adjective, set, strong, determined)
10
dogged(adjective, strong, tough, solid)
10
indefatigable(adjective, set, strong, determined)
10
stubborn(adjective, strong, tough, intense)
9
immovable(adjective, solid, intense, determined)
9
tenacious(adjective, strong, determined, steady)
7
dependable(adjective, close, correct, honest)
7
obdurate(adjective, strong, tough, determined)
7
scrupulous(adjective, close, complete, correct)
7
sturdy(adjective, strong, tough, solid)
7
unfailing(adjective, set, strong, determined)
6
even(adjective, smooth, right, solid)
6
pertinacious(adjective, strong, tough, determined)
6
relentless(adjective, strong, tough, intense)
6
reliable(adjective, close, correct, honest)
6
stable(adjective, solid, fixed, resolute)
5
adamant(adjective, strong, tough, determined)
5
allegiant(adjective, close, correct, honest)
5
ardent(adjective, close, correct, honest)
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APASmart Define. (2015). unswerving thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unswerving/thesaurus/synonyms
ChicagoSmart Define. 2015. "unswerving thesaurus" https://smartdefine.org/unswerving/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unswerving thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unswerving/thesaurus/synonyms>.
MLASmart Define. "unswerving thesaurus" 21 December 2015. Web. 28 September 2026. <https://smartdefine.org/unswerving/thesaurus/synonyms>