pep vs sobriety

pep

• Energy, high spirits. 

• To inject with energy and enthusiasm. 

sobriety

• Soundness of judgement. 

• The state or quality of being unhurried; a state of calm. 

• The quality or state of being grave or earnestly thoughtful. 

• A state of moderation or seriousness. 

• The quality or state of not being intoxicated. 

• Modesty in color or style.