coolness vs unenthusiasm

Indifference; lack of passion or interest. 

The state of being cool, i.e. calm. 

The state of being cool, i.e. good or pleasing. 

The result or product of being cool, i.e. good or pleasing. 

The state of being cool, i.e. chilly. 

The result or product of being cool, i.e. chilly. 

Lack of enthusiasm.