67 entries under cruel topic. ×

24
determined(adjective, strong, flat, firm, harsh)
17
unyielding(adjective, mean, strong, severe, flat)
11
relentless(adjective, mean, severe, firm, harsh)
9
inflexible(adjective, strong, flat, firm, harsh)
8
dogged(adjective, strong, firm, harsh, energetic)
8
unbending(adjective, strong, flat, firm, harsh)
7
implacable(adjective, mean, severe, harsh)
7
inexorable(adjective, mean, severe, harsh)
6
single-minded(adjective, harsh, determined, fierce)
6
uncompromising(adjective, firm, harsh, determined)
6
undeviating(adjective, strong, flat, harsh, certain)
6
unrelenting(adjective, mean, severe, harsh)
5
adamant(adjective, strong, flat, firm, harsh)
5
intractable(adjective, determined, fixed, resolute)
5
ruthless(adjective, mean, strong, severe, harsh)
4
grim(adjective, mean, severe, harsh)
4
rigid(adjective, harsh, determined, fierce)
3
merciless(adjective, mean, harsh, determined)
3
mortal(adjective, mean, severe, harsh)
3
obdurate(adjective, strong, flat, harsh, certain)
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APASmart Define. (2015). unflinching thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unflinching/thesaurus/synonyms
ChicagoSmart Define. 2015. "unflinching thesaurus" https://smartdefine.org/unflinching/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unflinching thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unflinching/thesaurus/synonyms>.
MLASmart Define. "unflinching thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/unflinching/thesaurus/synonyms>