1. the quality or state of being able to bounce or spring back readily
2. liveliness, energy, or cheerfulness in manner or movement
Usage: informal

Examples

• The bounciness of the new basketball made it perfect for the game.
• She walked with such bounciness that everyone could tell she was in a great mood.
• The mattress lost its bounciness after years of use.
• The child's bounciness and enthusiasm were contagious.
• Modern running shoes are designed for maximum bounciness and comfort.
• The bounciness of the trampoline made it fun for the kids.