102 entries under persistent topic. ×

1
enduring(adjective, set, strong, flat, firm)
1
ferocious(adjective, harsh, cruel, determined, fierce)
1
fierce(adjective, harsh, cruel, determined)
1
go for broke(expression, adjective, idiom, severe, honest)
1
grim(adjective, harsh, cruel, determined, fierce)
1
hang-tough(adjective, harsh, cruel, determined, fierce)
1
hang in(expression, adjective, harsh, cruel, determined)
1
hanging tough(expression, adjective, determined, vigorous, resolute)
1
hard(adjective, harsh, cruel, determined, fierce)
1
hard-headed(adjective, constant, pitiless, unyielding)
1
harsh(adjective, cruel, determined, fierce)
1
immobile(adjective, intense, cruel, resolute)
1
immovable(adjective, strong, solid, cruel, determined)
1
implacable(adjective, harsh, cruel, determined, fierce)
1
incessant(adjective, determined, steady, resolute)
1
inexorable(adjective, harsh, cruel, determined, fierce)
1
inhuman(adjective, harsh, cruel, determined, fierce)
1
insistent(adjective, set, firm, determined, steady)
1
intense(adjective, set, deliberate, determined, deep)
1
intransigent(adjective, strong, tough, firm, determined)
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APASmart Define. (2016). bound thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/bound/thesaurus/synonyms
ChicagoSmart Define. 2016. "bound thesaurus" https://smartdefine.org/bound/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, bound thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/bound/thesaurus/synonyms>.
MLASmart Define. "bound thesaurus" 26 February 2016. Web. 20 September 2026. <https://smartdefine.org/bound/thesaurus/synonyms>