65 entries under persistent topic. ×

1
incurable(continuous, hardened, lasting, continuing)
1
mean business(expression, adjective, intense, deliberate, determined)
1
pat(adjective, certain, determined, usual, regular)
1
perennial(continuous, hardened, lasting, continuing)
1
persevering(adjective, strong, flat, firm, determined)
1
persisting(firm, hardened, unyielding, lasting)
1
protracted(continuous, lasting, continuing, remaining)
1
recurring(continuous, lasting, continuing, remaining)
1
serious(adjective, strong, firm, sensible, steady)
1
set on(expression, adjective, serious, resolute)
1
single-minded(adjective, firm, sensible, solid, intense)
1
strong-minded(adjective, certain, determined, significant, serious)
1
strong-willed(adjective, firm, intense, deliberate, determined)
1
unabating(continuous, lasting, continuing, remaining)
1
unflinching(adjective, strong, flat, firm, certain)
1
unhesitating(adjective, solid, certain, serious, resolute)
1
unmitigated(continuous, lasting, continuing, remaining)
0
continual(continuous, lasting, continuing, remaining)
0
continuous(lasting, continuing, remaining)
0
hard as nails(expression, idiom, serious, resolute)
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APASmart Define. (2016). settled thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/settled/thesaurus/synonyms
ChicagoSmart Define. 2016. "settled thesaurus" https://smartdefine.org/settled/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, settled thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/settled/thesaurus/synonyms>.
MLASmart Define. "settled thesaurus" 27 March 2016. Web. 20 September 2026. <https://smartdefine.org/settled/thesaurus/synonyms>