The quality or condition of being vivacious; liveliness: "the light and vivacity that laugh in the eyes of a child” ( Charles Dickens). (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "vivacity" in a sentence
"His mother, always a practical woman, did not press the question of marriage, deeming that with his disposition he would stand a better chance of married peace when he had expended a good deal of what she called his vivacity; and his father, who came of very long-lived people, always said that no man should take a wife before he was thirty."
"His politeness, his learning, his knowledge of the world, however amiable, are in character at his season of life; but his vivacity is astonishing."
"It rivals in vivacity the representations by Jacob Hoefnagel (circa 1610; National Library of Austria) and the head study, possibly from life, by Cornelis Saftleven (1638; Boymans Museum, Rotterdam; E. Fuller, Dodo: From Extinction to Icon, London, 2002, pp. 80-81, 111)."