vinegary

adj

1. Sour; like vinegar.

   “When Martha reopened the bottle of wine from the previous week's party, a vinegary whiff indicated that drinking it was out of the question.”

   “Cherry Jones as Nan Pierce (2023), 42:42 from the start, in Succession, season 4, episode 1: “I like my wine thin and vinegary.””

2. (figuratively)Acerbic, bitter, irritable.

   “Then she remembered Jalil's disgusting behaviour of the previous evening and turned to give him vinegary words.”

   “Edward's maiden aunt was a vinegary old soul with a sharp tongue and quick temper; she would not be receiving a wedding invitation.”

   “A vinegary face has Mrs Miff, and a mortified bonnet, and eke a thirsty soul for sixpences and shillings.”

3. Of a liquid, having turned partially or fully to vinegar.