astringent

It was musty and slightly astringent, not unlike the communal bin area in his block of flats.

“It’s going to become bitter and astringent. You're going to extract too many tannins out of it.”

These compounds, which look like rings at the molecular level, interact with proteins in your saliva to produce a dry, astringent sensation that makes your mouth pucker.

The latter are bitter and astringent compounds that come from grape skins, seeds and stems.

Frank‘s and Charley‘s very different definitions of what constitutes a friend offers an astringent alternative to our culture’s sometimes treacly, overly simplistic portrayal of the bond.