coolness vs pep

coolness

• 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. 

pep

• Energy, high spirits. 

• To inject with energy and enthusiasm.