395 entries under adjective topic. ×

3
invincible(persistent, obstinate, insistent, dogged)
3
overzealous(precise, thorough, meticulous)
3
pat(difficult, determined, serious, resolute)
3
perverse(tough, firm, difficult, resist)
3
rude
3
stern(resolute, persistent, obstinate, insistent)
3
strict(persistent, obstinate, insistent, dogged)
3
sullen
3
sure(strong, flat, firm, solid)
3
unconquerable(persistent, obstinate, insistent, dogged)
3
undeviating(strong, intense, deliberate, determined)
3
urgent
3
wiry
2
abiding(strong, tough, definite, persistent)
2
bulldog
2
burly(strong, fit, healthy, well)
2
chronic(persistent, continuous, lasting, continuing)
2
continuing(strong, firm, determined, steady)
2
forbidding
2
foresighted
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APASmart Define. (2015). tenacious thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/tenacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "tenacious thesaurus" https://smartdefine.org/tenacious/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, tenacious thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/tenacious/thesaurus/synonyms>.
MLASmart Define. "tenacious thesaurus" 6 November 2015. Web. 24 September 2026. <https://smartdefine.org/tenacious/thesaurus/synonyms>