98 entries under fierce topic. ×

43
ruthless(adjective, animal, mean, hard, tough)
40
cruel(adjective, mean, hard, tough, severe)
37
merciless(adjective, mean, hard, kind, tough)
29
brutal(adjective, person, mean, hard, tough)
27
harsh(adjective, mean, hard, tough, severe)
26
heartless(adjective, mean, feeling, hard, tough)
26
savage(adjective, animal, mean, hard, tough)
25
unfeeling(adjective, animal, person, mean, hard)
23
inhuman(adjective, animal, person, mean, hard)
21
unmerciful(adjective, mean, hard, kind, tough)
20
remorseless(adjective, animal, mean, kind, severe)
18
barbaric(adjective, animal, person, mean, violent)
18
callous(adjective, mean, hard, tough, severe)
18
severe(adjective, person, mean, hard, tough)
17
hard(adjective, mean, tough, severe, nasty)
16
vicious(adjective, mean, nasty, harsh, violent)
15
barbarous(adjective, animal, mean, hard, tough)
15
ferocious(adjective, animal, mean, nasty, harsh)
14
brutish(adjective, hard, nasty, violent, cold)
14
cold-blooded(adjective, mean, hard, tough, severe)
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APASmart Define. (2016). pitiless thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/pitiless/thesaurus/synonyms
ChicagoSmart Define. 2016. "pitiless thesaurus" https://smartdefine.org/pitiless/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, pitiless thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/pitiless/thesaurus/synonyms>.
MLASmart Define. "pitiless thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/pitiless/thesaurus/synonyms>