143 entries under severe topic. ×

4
fierce(adjective, animal, mean, evil)
4
incompatible(adjective, bleak, stark, austere)
4
inexorable(adjective, mean, hard, evil)
4
inflexible(adjective, mean, hard, tough)
4
strict(adjective, tough, harsh, cruel)
4
unrelenting(adjective, animal, mean, hard, tough)
4
vengeful(adjective, tough, evil, nasty)
4
vindictive(adjective, mean, nasty, harsh)
4
wanton(adjective, mean, harsh, cruel)
3
bestial(adjective, animal, mean, evil)
3
compassionless(adjective, mean, hard, attitude)
3
forbidding(adjective, person, close, hard, cool)
3
uncompromising(adjective, mean, hard, tough)
2
abusive(adjective, hard, sharp, nasty)
2
bleak(adjective, tough, harsh, cruel)
2
comfortless(adjective, hard, sharp, nasty)
2
cutthroat(adjective, mean, hard, harsh)
2
grim(adjective, animal, mean, tough)
2
hard-nosed(adjective, close, mean, hard, tough)
2
having a killer instinct(expression, adjective, idiom, mean)
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APASmart Define. (2016). unfeeling thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unfeeling/thesaurus/synonyms
ChicagoSmart Define. 2016. "unfeeling thesaurus" https://smartdefine.org/unfeeling/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, unfeeling thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unfeeling/thesaurus/synonyms>.
MLASmart Define. "unfeeling thesaurus" 31 March 2016. Web. 28 September 2026. <https://smartdefine.org/unfeeling/thesaurus/synonyms>