100 entries under severe topic. ×

1
pitiless(adjective, hard, tough, harsh)
1
rancorous(adjective, mean, nasty, hostile)
1
relentless(adjective, hard, tough, harsh)
1
rigid(adjective, hard, sharp, flat)
1
rusty(adjective, hard, sharp, flat)
1
ruthless(adjective, hard, tough, harsh)
1
screeching(adjective, hard, sharp, flat)
1
stridulous(adjective, hard, sharp, flat)
1
tough(adjective, hard, nasty, harsh)
1
unlevel(adjective, hard, sharp, flat)
0
abusive(adjective, bleak, stark, austere)
0
comfortless(adjective, bleak, stark, austere)
0
cussed(adjective, bleak, stark, austere)
0
hard-boiled(adjective, bleak, stark, austere)
0
hard-shell(adjective, bleak, stark, austere)
0
punitive(adjective, bleak, stark, austere)
0
sardonic(adjective, sharp, nasty, hostile)
0
stark(adjective, bleak, austere, inhospitable)
0
stringent(adjective, strong, sharp, powerful)
0
unfeeling(adjective, bleak, stark, austere)
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APASmart Define. (2016). sour thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/sour/thesaurus/synonyms
ChicagoSmart Define. 2016. "sour thesaurus" https://smartdefine.org/sour/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, sour thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/sour/thesaurus/synonyms>.
MLASmart Define. "sour thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/sour/thesaurus/synonyms>