What does the word vivacity mean?

Usage examples for vivacity

  1. Mary was brimful of vivacity and good- humour, and Ralph quickly caught the contagion of her cheerful temper. – The Squire's Daughter by Silas K(itto) Hocking
  2. She had lost her childish vivacity- her sweet, equable flow of good humor. – The Two Destinies by Wilkie Collins
  3. I have said a word or two about M. de Peyrehorade; I should add that he was vivacity itself. – Abbé Aubain and Mosaics by Prosper Mérimée