Definitions

1. noun

the quality or feeling of jazz or jazz music; a carefree, lively, and spontaneous quality

“The party’s jazziness was infectious, and everyone started dancing.”

2. noun

the state of being lively or full of energy

“The city’s jazziness during the festival was electric.”

3. noun

a quality of spontaneity and creativity

“The artist’s jazziness in her improvisational dance was impressive.”