45 entries under tenacious topic. ×

51
determined(adjective, set, firm, resolute, persistent)
49
stubborn(adjective, characteristic, quality, determined, resolute)
48
resolute(adjective, set, firm, determined, steady)
40
firm(adjective, set, determined, steady, resolute)
31
obdurate(adjective, determined, resolute, obstinate, uncompromising)
26
fixed(adjective, set, determined, steady, resolute)
26
stiff(adjective, determined, resolute, obstinate, uncompromising)
25
persistent(adjective, continue, determined, resolute, demanding)
21
obstinate(adjective, determined, resolute, demanding, uncompromising)
15
tenacious(adjective, determined, resolute, obstinate, uncompromising)
14
importunate(adjective, hard, tough, continue, firm)
12
dogged(adjective, determined, resolute, persistent, demanding)
10
steadfast(adjective, determined, resolute, obstinate, uncompromising)
9
persevering(adjective, resolute, demanding)
7
bold(adjective, resolute)
6
indefatigable(adjective, resolute)
5
diligent(adjective, resolute)
5
indomitable(adjective, resolute)
5
tireless(adjective, resolute)
5
tough(adjective, determined, resolute, obstinate, uncompromising)
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APASmart Define. (2015). insistent thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/insistent/thesaurus/synonyms
ChicagoSmart Define. 2015. "insistent thesaurus" https://smartdefine.org/insistent/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, insistent thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/insistent/thesaurus/synonyms>.
MLASmart Define. "insistent thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/insistent/thesaurus/synonyms>