souredness

English

Etymology

soured +‎ -ness

Noun

souredness (uncountable)

1. The quality of having become sour.
   • 1861, Thomas Wyatt, The Poetical Works of Sir Thomas Wyatt, page xvi:

     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.