320 entries under harsh topic. ×

8
mordant(adjective, mean, sharp, nasty, difficult)
8
overbearing(adjective, difficult, character trait)
8
unforgiving(adjective, person, mean, hard, rough)
7
angry(adjective, state, characteristic, tough)
7
blunt(adjective, hard, tough, plain)
7
disagreeable(adjective, hard, tough, tender)
7
effortful(adjective, tough, rough, difficult)
7
exigent(adjective, hard, tough, difficult)
7
implacable(adjective, appearance, mean, strong, hard)
7
intemperate(adjective, hard, tough, rough, difficult)
7
unmerciful(adjective, mean, cruel, vicious)
6
earnest(adjective, calm, quiet, set, strong)
6
acerbic(adjective, mean, sharp, nasty)
6
barbarous(adjective, appearance, mean, awful)
6
domineering(adjective, difficult)
6
ferocious(adjective, mean, hard, rough)
6
finicky(adjective, tough, difficult, cross)
6
forceful(adjective, strong, sharp, intense)
6
forcible(adjective, strong, sharp, intense)
6
fussy(adjective, hard, tough, difficult)
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APASmart Define. (2016). severe thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/severe/thesaurus/synonyms
ChicagoSmart Define. 2016. "severe thesaurus" https://smartdefine.org/severe/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, severe thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/severe/thesaurus/synonyms>.
MLASmart Define. "severe thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/severe/thesaurus/synonyms>