Frolicsome means playful, lighthearted, and full of energy in a cheerful way. A frolicsome puppy bounds around the yard, chasing butterflies and rolling in the grass just for the joy of it. Frolicsome kids might turn a simple walk home from school into an adventure, hopping over cracks in the sidewalk and making up silly games along the way.

The word captures a particular kind of playfulness: carefree, bouncy, and spirited. It means expressing happiness through active movement and a bit of mischief. A frolicsome mood makes ordinary moments feel lighter. You might describe otters as frolicsome when they slide down muddy banks into the water, or call your little sister frolicsome when she dances through the kitchen while helping with dinner.

The word comes from frolic, which means to play and move about cheerfully. When you're feeling frolicsome, you're not worried about looking serious or dignified. You're just enjoying the moment with unbridled energy and good spirits.