vivacity (n.)

• activity
• alacrity
• animation
• anxiety
• anxiousness
• appetite
• ardor
• avidity
• avidness
• birth
• breeziness
• brio
• briskness
• bubbliness
• dash
• eagerness
• ebullience
• effervescence
• elan
• energy
• enthusiasm
• esprit
• existence
• exuberance
• forwardness
• friskiness
• frolicsomeness
• gaiety
• gayness
• glow
• gust
• gusto
• heartiness
• immortality
• impatience
• impetuosity
• impetus
• keenness
• life
• lifetime
• liveliness
• living
• longevity
• lustiness
• mettle
• moxie
• pep
• peppiness
• perkiness
• pertness
• piquancy
• pizzazz
• playfulness
• poignancy
• promptness
• pungency
• quickness
• raciness
• readiness
• robustness
• skittishness
• sparkle
• spirit
• spiritedness
• spirits
• sportiveness
• sprightliness
• verve
• viability
• vigor
• vim
• vitality
• vividness
• warmth
• zest
• zestfulness
• zip