Definition from Wiktionary, the free dictionary
sourness (plural sournesses)
- The quality or condition of being sour, usually said of human personalities.
- 1811 Mrs. Ferrars was a little, thin woman, upright, even to formality, in her figure, and serious, even to sourness , in her aspect. — Jane Austen, Sense and Sensibility, Chapter 2.1.
quality or condition