Definitions

1. adjective

having or giving off the characteristic smell of yeast, especially bread or beer.

“The baker noticed that her sourdough bread had a particularly yeasty aroma.”

2. adjective

full of vitality, enthusiasm, or excitement.

“The young rockstar had a yeasty performance at the music festival.”

3. noun

a quality of being lively and full of energy.

“The yeasty atmosphere of the party was contagious.”