16
cantankerous(adjective, hard, evil, rough, nasty)
16
churlish(adjective, hard, rough, nasty, low)
16
crabby(adjective, severe, nasty, low, difficult)
16
ill-tempered(adjective, hard, evil, rough, nasty)
15
testy(adjective, difficult, feelings, gloomy, depressed)
15
acid(noun, adjective, strong, taste, sharp)
15
acrimonious(adjective, strong, tough, severe, sharp)
15
bad-tempered(adjective, hard, evil, rough, nasty)
15
grumpy(adjective, feelings, sadness, gloom, unclear)
14
crusty(adjective, tough, difficult, harsh, feelings)
14
turned(adjective, rank, foul, disagreeable, bitter)
14
unpleasant(adjective, bad, hard, severe, evil)
13
biting(adjective, strong, severe, sharp, nasty)
13
crabbed(adjective, severe, low, gloomy, depressed)
13
off(adjective, strong, rank, inferior, foul)
12
acidic(adjective, sharp, bitter, cutting, acid)
12
curdle(verb, action, dull, turn, spoil)
12
cutting(verb, adjective, strong, sharp, property)
12
disagreeable(adjective, bad, hard, evil, rough)
12
petulant(adjective, difficult, irritable, critical, sullen)
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APASmart Define. (2016). sour thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sour/thesaurus/synonyms
ChicagoSmart Define. 2016. "sour thesaurus" https://smartdefine.org/sour/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, sour thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sour/thesaurus/synonyms>.
MLASmart Define. "sour thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/sour/thesaurus/synonyms>