1. the quality or state of being playful, lighthearted, and full of fun or merriment
Usage: formal or literary; derived from the adjective 'frolicsome'

Examples

• The children's frolicsomeness was evident as they chased each other through the park.
• Her natural frolicsomeness made her the life of every party.
• The puppies displayed remarkable frolicsomeness, tumbling and playing without a care.
• Despite the formal setting, a sense of frolicsomeness filled the room during the celebration.
• The actor's frolicsomeness brought warmth and humor to the otherwise serious scene.
• We appreciated the frolicsomeness of the carnival atmosphere.