souredness

noun

souredness

noun

Etymology From soured + -ness.

1

The quality of having become sour.

In his Satires we find what we may call a mellowed souredness of spirit, like the taste of the plum or sloe when touched by the first frosts.1861, Thomas Wyatt, The Poetical Works of Sir Thomas Wyatt, page xvi:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.