1. (n.) Animation; spiritedness; liveliness; sprightliness; as, the vivacity of a discourse\; a lady of great vivacity; vivacity of countenance.

2. (n.) The quality or state of being vivacious.

3. (n.) Tenacity of life; vital force; natural vigor.

activity alacrity animal spirits animate existence animation anxiety anxiousness appetite ardor avidity avidness being alive birth breathless impatience breeziness brio briskness bubbliness capersomeness cheerful readiness coltishness dash eagerness ebullience effervescence elan energy enthusiasm esprit existence exuberance forwardness friskiness frolicsomeness gaiety gamesomeness gayness glow gust gusto having life heartiness immortality impatience impetuosity impetus joie de vivre keen desire keenness life lifetime liveliness living long life longevity lustiness mettle moxie pep peppiness perkiness pertness piquancy piss and vinegar pizzazz playfulness poignancy promptness pungency quickness raciness readiness robustness rollicksomeness rompishness skittishness sparkle spirit spiritedness spirits sportiveness sprightliness spriteliness verve viability vigor vim vitality vivaciousness vividness warmth zest zestfulness zip