2
determined(adjective, strong, firm, energetic, vigorous)
2
enduring
2
faithful
2
firm(adjective, strong, determined, steady, constant)
2
grind(adjective, strong, firm, informal, energetic)
2
hard
2
hard-working(adjective, activity, informal, tireless)
2
incessant(adjective, strong, firm, energetic, determined)
2
laborious
2
painstaking
2
patient(adjective, strong, firm, energetic, determined)
2
perseverant
2
pertinacious(adjective, strong, firm, energetic, determined)
2
plugging(adjective, strong, firm, determined, steady)
2
relentless
2
rested(adjective, good, clear, pleasant, keen)
2
solid
2
staunch(adjective, strong, firm, determined, steady)
2
strong(adjective, firm, determined, steady, constant)
2
sturdy
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APASmart Define. (2015). unwearied thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unwearied/thesaurus/synonyms
ChicagoSmart Define. 2015. "unwearied thesaurus" https://smartdefine.org/unwearied/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unwearied thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unwearied/thesaurus/synonyms>.
MLASmart Define. "unwearied thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unwearied/thesaurus/synonyms>