180 entries under nasty topic. ×

32
bitter(adjective, upset, mean, bad, strong)
23
dour(adjective, mean, tough, severe)
20
sharp(adjective, strong, hard, severe, rough)
20
tart(noun, adjective, strong, taste, sharp)
19
caustic(adjective, strong, severe, sharp)
19
rancid(adjective, taste, unpleasant, rank)
19
surly(adjective, mean, tough, low)
16
cantankerous(adjective, hard, evil, rough)
16
churlish(adjective, hard, rough, low)
16
crabby(adjective, severe, low, difficult)
16
ill-tempered(adjective, hard, evil, rough)
15
acid(noun, adjective, strong, taste, sharp)
15
acrimonious(adjective, strong, tough, severe, sharp)
15
bad-tempered(adjective, hard, evil, rough)
14
unpleasant(adjective, bad, hard, severe, evil)
13
biting(adjective, strong, severe, sharp)
12
disagreeable(adjective, bad, hard, evil, rough)
12
rotten(adjective, bad, hard, evil, rough)
11
bad(adjective, offensive, unpleasant, rank)
11
distasteful(adjective, bad, offensive, unpleasant)
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APASmart Define. (2016). sour thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/sour/thesaurus/synonyms
ChicagoSmart Define. 2016. "sour thesaurus" https://smartdefine.org/sour/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, sour thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/sour/thesaurus/synonyms>.
MLASmart Define. "sour thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/sour/thesaurus/synonyms>