Examples from the Web for vinegary
Mrs. Biggs had not expected Ruby Ann to call, and her face wore a vinegary expression when she opened the door to her.The Cromptons|Mary J. Holmes
Her ladyship displayed a vinegary smile, and looked at her companion over the top of her slowly moving fan.The Lion's Skin|Rafael Sabatini
Falk clasped a hand, hard as a beetle, and received a vinegary smile.The Red Room|August Strindberg
I am weary of retired colonels with port-stained faces, and vinegary old maids, and unctuous canons.
"I gave him the money, it was his own, I've got nothing to show," said Miss Quisanté with her vinegary little smile.Quisant|Anthony Hope