710 entries under adjective topic. ×

32
bitter(upset, mean, bad, strong)
26
harsh(hard, tough, severe, taste)
24
sullen(upset, happy, feelings, sadness)
23
cross(noun, difficult, feelings, gloomy)
23
dour(mean, tough, severe, nasty)
22
glum(happy, feelings, sadness, gloom)
21
gloomy(happy, feelings, sadness, gloom)
20
morose(happy, feelings, sadness, depressed)
20
peevish(difficult, feelings, hostile, irritable)
20
sharp(strong, hard, severe, rough)
20
tart(noun, strong, taste, sharp)
19
caustic(strong, severe, sharp, nasty)
19
rancid(taste, nasty, unpleasant, rank)
19
surly(mean, tough, nasty, low)
18
grouchy(tough, low, difficult, sad)
18
moody(happy, feelings, sadness, gloom)
17
irritable(low, difficult, sad, cross)
17
sulky(happy, feelings, sadness, gloom)
16
acerbic(taste, sharp, harsh, irritable)
16
acrid(strong, hard, tough, severe)
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APASmart Define. (2016). sour thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sour/thesaurus/synonyms
ChicagoSmart Define. 2016. "sour thesaurus" https://smartdefine.org/sour/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, sour thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sour/thesaurus/synonyms>.
MLASmart Define. "sour thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/sour/thesaurus/synonyms>