1
bloodthirstily
1
cold-bloodedly(adverb, ruthlessly, mercilessly)
1
cold-heartedly(adverb, ruthlessly, mercilessly)
1
coldheartedly
1
coldly(adverb, ruthlessly, mercilessly)
1
fiendishly
1
grimly
1
hardly
1
hellishly
1
implacably
1
inflexibly
1
insensitively
1
obdurately
1
severely
1
sternly
1
tooth and nail(expression, idiom)
1
uncharitably
0
In a cruelhearted way(adverb, cruel, evil way)
0
acrimonious
0
adamantly
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APASmart Define. (2016). pitilessly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/pitilessly/thesaurus/synonyms
ChicagoSmart Define. 2016. "pitilessly thesaurus" https://smartdefine.org/pitilessly/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, pitilessly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/pitilessly/thesaurus/synonyms>.
MLASmart Define. "pitilessly thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/pitilessly/thesaurus/synonyms>