| foul(adjective, rank, disgusting, horrible, disagreeable) | |
| fretful(adjective, tough, difficult, harsh, awkward) | |
| frowning(adjective, low, gloomy, miserable, depressed) | |
| gamy | |
| good(adjective, tasty) | |
| heighten(verb, aggravation) | |
| high | |
| impatient(adjective, sullen, grumpy, crabby, moody) | |
| jaundiced(adjective, disagreeable, mood, bad-tempered, resentful) | |
| lemony | |
| peppery(adjective, strong, sharp, powerful, hot) | |
| poignant(adjective, pungent) | |
| prickly(adjective, tough, difficult, harsh, awkward) | |
| putrid(adjective, rank, foul, disagreeable, stale) | |
| savoriness(noun, drive, sweet, hint, smack) | |
| shrill | |
| splenetic(adjective, tough, harsh, gloomy, depressed) | |
| sweet(noun, adjective, drive, hint, smack) | |
| trenchant | |
| unappetizing(adjective, bad, nasty, unpleasant, disagreeable) |
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| APA | Smart Define. (2016). sour thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sour/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sour thesaurus" https://smartdefine.org/sour/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, sour thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sour/thesaurus/synonyms>. |
| MLA | Smart Define. "sour thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/sour/thesaurus/synonyms> |