yeasty

American  

[yee-stee] / ˈyi sti /

adjective

yeastier, yeastiest

1. of, containing, or resembling yeast.

2. frothy; foamy.

3. youthful; exuberant; ebullient.

4. trifling; frivolous.

5. characterized by agitation, excitement, change, etc..

   the yeasty years immediately following college.

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yeasty British  

/ ˈjiːstɪ /

adjective

1. of, resembling, or containing yeast

2. fermenting or causing fermentation

3. tasting of or like yeast

4. insubstantial or frivolous

5. restless, agitated, or unsettled

6. covered with or containing froth or foam

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Other Word Forms

• yeastily adverb
• yeastiness noun

Etymology

Origin of yeasty

First recorded in 1590–1600; yeast + -y ¹

Example Sentences

We sipped glasses of his flagship dry cider made with Baldwin, Jonagold and Northern Spy apples for a drink that’s pleasingly yeasty and fresh, and the color of early-fall sunshine.

From The Wall Street Journal • Oct. 10, 2025

However, others, like Balanophora subcupularis, have dull colors and a yeasty smell, making it unlikely that vertebrates are involved.

From Science Daily • Dec. 4, 2024

Hours before the start of the holiday, Anya Ladchenko, 41, brought her 4-year-old daughter, Sofiya, to learn to make challah, the yeasty braided bread baked in rounds for Rosh Hashana.

From Los Angeles Times • Sep. 17, 2023

“Boris Johnson was a marmite politician” said David Simmonds, a Conservative lawmaker in the neighboring area of Ruislip, Northwood and Pinner, referring to a salty, yeasty paste that Britons tend to either love or hate.

From New York Times • Jul. 18, 2023

Even cold it’s pillowy and yeasty and a little bit sweet.

From "Clairboyance" by Kristiana Kahakauwila