64 entries under pitiless topic. ×

8
ruthless(adjective, mean, severe, harsh, cruel)
7
implacable(adjective, mean, severe, harsh, cruel)
7
unrelenting(adjective, mean, severe, harsh, cruel)
6
cruel(adjective, mean, severe, harsh, awful)
6
merciless(adjective, mean, harsh, cruel, determined)
6
relentless(adjective, mean, severe, harsh, cruel)
6
severe(adjective, mean, harsh, cruel, vicious)
5
ferocious(adjective, mean, harsh, awful, terrible)
5
grim(adjective, mean, severe, harsh, cruel)
5
vicious(adjective, mean, harsh, awful, terrible)
4
savage(adjective, mean, harsh, violent, cruel)
4
unappeasable(adjective, mean, severe, harsh, cruel)
3
brutal(adjective, mean, harsh, cruel, vicious)
3
feral(adjective, mean, severe, harsh, cruel)
3
remorseless(adjective, mean, severe, harsh, cruel)
3
unflinching(adjective, mean, severe, harsh, cruel)
3
unyielding(adjective, mean, severe, harsh, cruel)
2
barbarous(adjective, mean, severe, harsh, cruel)
2
inexorable(adjective, mean, severe, harsh, cruel)
2
killer(adjective, mean, severe, harsh, cruel)
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APASmart Define. (2016). mortal thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/mortal/thesaurus/synonyms
ChicagoSmart Define. 2016. "mortal thesaurus" https://smartdefine.org/mortal/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, mortal thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/mortal/thesaurus/synonyms>.
MLASmart Define. "mortal thesaurus" 30 March 2016. Web. 24 September 2026. <https://smartdefine.org/mortal/thesaurus/synonyms>