exuberancy

Noun

exuberance (countable and uncountable, plural exuberances)

1. (uncountable) The quality of being exuberant; cheerful or vigorous enthusiasm; liveliness.
   • Tottenham's desire for a win against a Norwich side playing with energy and exuberance made for an enthralling, end-to-end game.2012 April 9, Mandeep Sanghera, “Tottenham 1 - 2 Norwich”, in BBC Sport

   Synonyms:

   ebullience, joy, vim, vitality, ardor, alacrity, celerity, energy, joie de vivre, enthusiasm

   Antonyms:

   apathy, dullness, listlessness

2. An instance of exuberant behaviour.
3. An overflowing quantity; superfluousness.
   • an exuberance of branches in a plant
4. An abundance of wealth.