320 entries under severe topic. ×

5
numb(adjective, tough, cruel, unsympathetic)
5
puzzling(adjective, fancy, difficult, property)
5
sober(adjective, sound, tough, reasonable)
5
stormy(adjective, nature, rough, difficult)
5
wicked(adjective, mean, tough, evil)
4
bestial(adjective, evil, nasty, harsh)
4
disagreeable(adjective, evil, rough, nasty)
4
exact(adjective, correct, stiff, real)
4
grating(adjective, sharp, flat, rough)
4
hard-core(adjective, strong, tough, firm)
4
hostile(adjective, mean, evil, rough)
4
insensate(adjective, tough, careless, indifferent)
4
intense(adjective, strong, great, harsh)
4
simple(adjective, cold, austere, unadorned)
4
straight(adjective, adverb, sharp, bright)
4
tiresome(adjective, difficult, harsh, offensive)
4
unappeasable(adjective, mean, harsh, cruel)
4
unpitying(adjective, mean, cool, harsh)
3
abusive(adjective, sharp, nasty, bleak)
3
acrid(adjective, sharp, flat, rough)
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APASmart Define. (2016). hard thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/hard/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard thesaurus" https://smartdefine.org/hard/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, hard thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/hard/thesaurus/synonyms>.
MLASmart Define. "hard thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/hard/thesaurus/synonyms>