high spiritedness

/haɪˈspɪrɪtɪdnəs/
noun
  1. The quality of being full of energy, enthusiasm, and liveliness.
    • Her high-spiritedness made her the life of every party.
    • Despite his age, he retained the high-spiritedness of a young man.
    • The children's high-spiritedness was contagious, and soon everyone was laughing.