IPA: //vaɪˈnɛɡəri//
KK: /ˈvaɪnɪɡəri/
Having a taste or smell similar to vinegar, often sharp or sour.
The salad dressing was too vinegary for my taste.
Vinegary → It is formed from "vinegar" (from Old French *vinaigre*, meaning sour wine) and the suffix "-y" (meaning characterized by). The word "vinegary" means characterized by the qualities of vinegar, particularly its sourness.
Think of vinegar, which is known for its sour taste, and remember that vinegary describes something that has that sour quality.