# fermented

/fɝˈmɛntəd/ (US) · /fɜːmˈɛntɪd/ (UK) · CEFR B2 · Adjective

Source: https://englishreference.com/word/fermented
Updated: 2026-05-07

## Definition

describes food or drink that has changed chemically over time, usually to become sour or alcoholic. This process uses tiny living things like bacteria or yeast to change the flavor.

For teachers: undergone a chemical change through the action of bacteria, yeasts, or other microorganisms. Often used to describe the preservation or flavor enhancement of organic substances.

## Examples

- I love the sour taste of fermented cabbage.
- Many traditional diets rely on fermented foods like yogurt and kimchi to provide beneficial bacteria for gut health.
- The distinct, pungent aroma of the fermented soybeans indicated that the traditional aging process was complete and the paste was ready for culinary use.

## Usage notes

- Often used as a participial adjective before a noun or after a linking verb like 'is' or 'tastes'.

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