Definition of "vinegary"

vinegary

adjective
comparative more vinegary, superlative most vinegary
1. Sour; like vinegar.
2. (figuratively) Acerbic, bitter.
  Quotations
  Then she remembered Jalil's disgusting behaviour of the previous evening and turned to give him vinegary words.
  1959, Anthony Burgess, Beds in the East (The Malayan Trilogy), published 1972, page 562
3. Of a liquid, having turned partially or fully to vinegar.