37 entries under firm topic. ×

2
plodding(verb, adjective, strong, determined)
2
constant(adjective, strong, determined, active)
2
continuing(adjective, strong, determined, steady)
2
dogged(adjective, strong, determined, steady)
2
grind(adjective, strong, energetic, lively)
2
indefatigable(adjective, strong, determined, active)
2
indomitable(adjective, strong, determined, steady)
2
patient(adjective, strong, determined, steady)
2
persevering(adjective, strong, keen, lively)
2
persistent(adjective, strong, energetic, lively)
2
pertinacious(adjective, strong, determined, active)
2
resolute(adjective, strong, determined, steady)
2
steady(adjective, strong, energetic, lively)
2
tenacious(adjective, strong, determined, steady)
2
tireless(adjective, strong, keen, lively)
2
unfailing(adjective, strong, determined, steady)
2
unfaltering(adjective, strong, determined, steady)
2
unflagging(adjective, strong, determined, active)
2
unflinching(adjective, strong, determined, steady)
2
unremitting(adjective, strong, determined, steady)
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APASmart Define. (2015). plugging thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/plugging/thesaurus/synonyms
ChicagoSmart Define. 2015. "plugging thesaurus" https://smartdefine.org/plugging/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, plugging thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/plugging/thesaurus/synonyms>.
MLASmart Define. "plugging thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/plugging/thesaurus/synonyms>