320 entries under severe topic. ×

3
astringent(adjective, strong, tough, sharp)
3
barbarous(adjective, mean, tough, evil)
3
cantankerous(adjective, mean, tough, evil)
3
compassionless(adjective, mean, attitude, harsh)
3
forbidding(adjective, person, strong, tough)
3
hairy(adjective, mean, tough, sharp)
3
monstrous(adjective, adverb, evil, nasty)
3
rude(adjective, sharp, rough, nasty)
3
sour(adjective, tough, evil, sharp)
3
threatening(tough, difficult, offensive, weighty)
3
valid(strength, correct, true, real)
3
vicious(adjective, mean, evil, rough)
3
worrying(adjective, tough, important, significant)
2
afflictive(adjective, rough, tender, unpleasant)
2
anesthetized(adjective, tough, cruel, unfeeling)
2
basic(adjective, rough, cold, coarse)
2
bloodthirsty(adjective, evil, nasty, harsh)
2
boisterous(adjective, tough, rough, difficult)
2
comfortless(adjective, sharp, rough, nasty)
2
craggy(adjective, sharp, rough, grim)
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APASmart Define. (2016). hard thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hard/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard thesaurus" https://smartdefine.org/hard/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, hard thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hard/thesaurus/synonyms>.
MLASmart Define. "hard thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/hard/thesaurus/synonyms>