One really gutted about taste — that's sourness

• Bitterness, sourness
• Sharpness was effective cutting very fine line
• Tartness
• A sharp bitterness
• A sharp and bitter manner
• A sharp sour taste

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1570s, from Middle French acerbité , from Latin acerbitatem (nominative acerbitas ) "harshness, sharpness, bitterness," from acerbus "bitter to taste, sharp, sour, tart" (related to acer "sharp;" compare Latin superbus "haughty," from super "above"), from ...

WordNet Word definitions in WordNet
n. a sharp bitterness a sharp sour taste [syn: tartness ] a sharp and bitter manner [syn: bitterness , acrimony , jaundice ]

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Acerbity \A*cerb"i*ty\, n. [F. acerbit['e], L. acerbitas, fr. acerbus. See Acerb .] Sourness of taste, with bitterness and astringency, like that of unripe fruit. Harshness, bitterness, or severity; as, acerbity of temper, of language, of pain. --Barrow. ...

Wiktionary Word definitions in Wiktionary
n. 1 sourness of taste, with bitterness and astringency, like that of unripe fruit. 2 harshness, bitterness, or severity; as, '''acerbity''' of temper, of language, of pain.