Synonyms|489Antonyms|42|Broader|2Narrower|0Related|227

129 entries under firm topic. ×

6
wholehearted(adjective, complete, total, solid)
5
adamant(adjective, strong, intense, determined)
5
certain(adjective, set, clear, complete)
5
deliberate(adjective, intense, determined, resolute)
5
dependable(adjective, solid, determined, stable)
5
indomitable(adjective, strong, determined, steady)
5
patient(adjective, strong, energetic, determined)
5
relentless(adjective, strong, energetic, vigorous)
5
stable(adjective, solid, steady, regular)
5
unwearied(adjective, strong, energetic, determined)
4
dedicated(adjective, strong, complete, warm)
4
devoted(adjective, strong, complete, warm)
4
fast(adjective, solid, stable, fixed)
4
never-failing(adjective, complete, total, solid)
4
true(adjective, strong, complete, warm)
4
unchanging(adjective, set, clear, strong)
4
uncompromising(adjective, clear, certain, definite)
4
unvarying(adjective, set, clear, solid)
3
changeless(adjective, clear, solid, certain)
3
definite(adjective, clear, complete, total)
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ChicagoSmart Define. 2015. "unfaltering thesaurus" https://smartdefine.org/unfaltering/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unfaltering thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unfaltering/thesaurus/synonyms>.
MLASmart Define. "unfaltering thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/unfaltering/thesaurus/synonyms>