Also, exuberancy. the state of being exuberant.

an instance of this

His pranks are youthful exuberances.

noun

discouragement , lifelessness , insufficiency , lack , need , want

noun

abandon , animation , ardor , bounce , buoyancy , cheerfulness , eagerness , ebullience , effervescence , excitement , exhilaration , fervor , friskiness , gayness , get up and go , high spirits , juice * , life , liveliness , pep , pepper * , spirit , sprightliness , vigor , vitality , zap * , zest * , zip * , abundance , affluence , copiousness , effusiveness , exaggeration , excessiveness , fulsomeness , lavishness , lushness , luxuriance , plenitude , plenty , prodigality , richness , superabundance , superfluity , teemingness , energy , enthusiasm , excess , extravagance , profusion , rampancy , vivacity , zest , zestfulness