English Vocabulary Builder Practice Test 2026 - Free Vocabulary Practice Questions and Study Guide

The idea here is about a taste or smell that has a biting, drying, and often bitter quality. Astringent captures that particular sensation: it describes flavors and odors that make the mouth feel dry and puckered, a common effect of tannins and certain bitter notes. Tart and sour point to acidity or sharpness in flavor, but they don’t convey that drying, bitter bite. Pungent refers to a strong, sharp smell or taste, not specifically to bitterness or dryness. So the term that best describes a taste or smell that is acidic or bitter, by highlighting that dry, biting bite, is astringent.