46 entries under tenacious topic. ×

6
enduring(adjective, set, strong, steady, constant)
6
indomitable(adjective, strong, firm, determined, steady)
6
pertinacious(adjective, strong, firm, energetic, determined)
5
devoted(adjective, strong, firm, determined, steady)
5
true(adjective, strong, firm, certain, determined)
4
bold
4
fervent
4
insistent
4
obdurate
4
strong(adjective, sound, tough, fit, firm)
3
courageous
3
dauntless
3
hard
2
bulldogged
2
bullheaded
2
hearty(adjective, strong, fit, healthy, well)
2
incessant(adjective, strong, firm, determined, steady)
2
plucky
2
strong-willed
2
tough(adjective, strong, sound, fit, firm)
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APASmart Define. (2015). unflagging thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unflagging/thesaurus/synonyms
ChicagoSmart Define. 2015. "unflagging thesaurus" https://smartdefine.org/unflagging/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, unflagging thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unflagging/thesaurus/synonyms>.
MLASmart Define. "unflagging thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/unflagging/thesaurus/synonyms>