58 entries under unwavering topic. ×

3
sure(adjective, strong, flat, firm, solid)
2
impregnable(adjective, firm, true, fixed, constant)
2
settled(adjective, strong, secure, flat, firm)
2
sound(adjective, strong, secure, tough, fit)
2
unhesitating(adjective, firm, determined, serious, resolute)
1
bent(adjective, strong, flat, intense, deliberate)
1
bent on(expression, adjective, serious, resolute, persistent)
1
buckled down(expression, adjective, serious, resolute, persistent)
1
driven(adjective, firm, determined, serious, resolute)
1
fastened(adjective, strong, secure, firm, solid)
1
fortified(adjective, strong, firm, solid, true)
1
hanging tough(expression, adjective, determined, vigorous, resolute)
1
hard-as-nails(adjective, serious, resolute, persistent)
1
hardboiled(adjective, serious, resolute, persistent)
1
mean business(expression, adjective, intense, deliberate, determined)
1
on ice(expression, adjective, serious, resolute, persistent)
1
set on(expression, adjective, serious, resolute, persistent)
1
tough nut(expression, determined, obstinate, stubborn)
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APASmart Define. (2015). tenacious thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/tenacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "tenacious thesaurus" https://smartdefine.org/tenacious/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, tenacious thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/tenacious/thesaurus/synonyms>.
MLASmart Define. "tenacious thesaurus" 6 November 2015. Web. 28 September 2026. <https://smartdefine.org/tenacious/thesaurus/synonyms>