(n.) The quality or state of being sprightly; liveliness; life; briskness; vigor; activity; gayety; vivacity.

animate existence animation being alive birth capersomeness coltishness elan esprit existence exuberance friskiness frolicsomeness gaiety gamesomeness gayness gusto having life heartiness immortality life lifetime liveliness living long life longevity piss and vinegar playfulness rollicksomeness rompishness skittishness spirit spiritedness spirits sportiveness sprightliness spriteliness verve viability vigor vim vitality vivacity zest zestfulness zip