4
foul(adjective, rank, disgusting, horrible, disagreeable)
4
fretful(adjective, tough, difficult, harsh, awkward)
4
frowning(adjective, low, gloomy, miserable, depressed)
4
gamy
4
good(adjective, tasty)
4
heighten(verb, aggravation)
4
high
4
impatient(adjective, sullen, grumpy, crabby, moody)
4
jaundiced(adjective, disagreeable, mood, bad-tempered, resentful)
4
lemony
4
peppery(adjective, strong, sharp, powerful, hot)
4
poignant(adjective, pungent)
4
prickly(adjective, tough, difficult, harsh, awkward)
4
putrid(adjective, rank, foul, disagreeable, stale)
4
savoriness(noun, drive, sweet, hint, smack)
4
shrill
4
splenetic(adjective, tough, harsh, gloomy, depressed)
4
sweet(noun, adjective, drive, hint, smack)
4
trenchant
4
unappetizing(adjective, bad, nasty, unpleasant, disagreeable)
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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>