92 entries under severe topic. ×

12
harsh(adjective, mean, strong, hard, tough)
12
unappeasable(adjective, mean, harsh, cruel)
11
pitiless(adjective, mean, hard, tough)
10
austere(adjective, appearance, mean, strong, hard)
7
rigorous(adjective, strong, hard, tough)
7
unflinching(adjective, mean, harsh, cruel)
5
unalterable(adjective, hard, stiff, inflexible)
5
unfeeling(adjective, mean, hard, evil)
5
unmerciful(adjective, mean, hard, tough)
5
unsympathetic(adjective, mean, hard, harsh)
4
heartless(adjective, mean, hard, tough)
4
unsparing(adjective, mean, strong, hard, tough)
3
flinty(adjective, close, strong, hard, tough)
3
forbidding(adjective, close, appearance, strong, hard)
3
stringent(adjective, harsh, cruel, determined)
3
unpitying(adjective, mean, harsh, cruel)
2
barbarous(adjective, appearance, mean, hard, tough)
2
callous(adjective, mean, hard, evil)
2
dog-eat-dog(adjective, mean, hard, harsh)
2
fierce(adjective, mean, hard, tough)
11 years ago|15k views|share |citing 
APASmart Define. (2015). inexorable thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/inexorable/thesaurus/synonyms
ChicagoSmart Define. 2015. "inexorable thesaurus" https://smartdefine.org/inexorable/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, inexorable thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/inexorable/thesaurus/synonyms>.
MLASmart Define. "inexorable thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/inexorable/thesaurus/synonyms>