95 entries under persistent topic. ×

1
determined(adjective, strong, firm, energetic, vigorous)
1
fierce(adjective, hard, tough, harsh, cruel)
1
fixed(adjective, determined, steady, resolute)
1
grim(adjective, hard, tough, harsh)
1
hanging tough(expression, adjective, constant, pitiless)
1
hard-headed(adjective, constant, pitiless, unyielding)
1
harsh(adjective, hard, tough, cruel, grim)
1
inhuman(adjective, hard, tough, harsh, cruel)
1
intransigent(adjective, constant, pitiless, unyielding)
1
iron-fisted(adjective, constant, pitiless, unyielding)
1
merciless(adjective, hard, tough, harsh, grim)
1
neverending(adjective, adverb, resolute, constant)
1
pitiless(adjective, hard, tough, harsh, grim)
1
rigorous(adjective, hard, tough, harsh, cruel)
1
ruthless(adjective, hard, tough, harsh, grim)
1
stiff-necked(adjective, constant, pitiless, unyielding)
1
unbending(adjective, constant, pitiless, unyielding)
1
unforgiving(adjective, hard, tough, harsh, cruel)
1
unyielding(adjective, hard, tough, harsh, grim)
1
vindictive(adjective, hard, tough, harsh, cruel)
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APASmart Define. (2015). unremitting thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unremitting/thesaurus/synonyms
ChicagoSmart Define. 2015. "unremitting thesaurus" https://smartdefine.org/unremitting/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, unremitting thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unremitting/thesaurus/synonyms>.
MLASmart Define. "unremitting thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/unremitting/thesaurus/synonyms>