Lively is an adjective that describes something full of life, energy, or activity.
Common usages of lively include:
1. Describing a person with an energetic personality: "She's a lively child who's always laughing."
2. Referring to an event or place with lots of activity: "The bar had a lively atmosphere."
3. Describing colors that are bright and vivid: "She wore a lively pink dress."
4. In music, indicating a fast tempo: "The third movement is marked lively."