The Oxford Thesaurus An A-Z Dictionary of Synonyms - exuberancen.

1) cheerfulness, joy, joyfulness, ebullience, effervescence, exhilaration, buoyancy, animation, spirit, spiritedness, sprightliness, liveliness, vitality, vivacity, enthusiasm, excitement, zeal, zest, energy, vigour: It is hard to imagine the dog's exuberance when he saw his master. 2) abundance, lavishness, effusiveness, flamboyance, copiousness, superabundance, superfluity, excess, profusion, prodigality, bounteousness, bountifulness: Everything attests to the exuberance of the author's genius.