Synonyms|801Antonyms|144|Broader|13Narrower|16Related|978

70 entries under persistent topic. ×

1
bound and determined(expression, adjective, idiom, determined)
1
firm(adjective, determined, steady, resolute)
1
hanging tough(expression, adjective, constant, pitiless)
1
hard-headed(adjective, constant, pitiless, unyielding)
1
intransigent(adjective, constant, pitiless, unyielding)
1
iron-fisted(adjective, constant, pitiless, unyielding)
1
merciless(adjective, constant, pitiless, unyielding)
1
mortal(adjective, dull, boring, dreary)
1
neverending(adjective, constant, continuous, relentless)
1
remorseless(adjective, constant, pitiless, unyielding)
1
steadfast(adjective, certain, determined, steady, resolute)
1
stiff-necked(adjective, constant, pitiless, unyielding)
1
tenacious(adjective, determined, steady, resolute)
1
unabated(adjective, constant, pitiless, unyielding)
1
unalterable(adjective, continuous, relentless, continual)
1
unbending(adjective, constant, pitiless, unyielding)
1
unwavering(adjective, constant, pitiless, unyielding)
0
equable(adjective, continuous, relentless, continual)
0
ironfisted
0
like the Rock of Gibralter(expression, adjective, idiom, continuous)
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HarvardSmart Define 2016, endless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/endless/thesaurus/synonyms>.
MLASmart Define. "endless thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/endless/thesaurus/synonyms>