Understanding the Word Exuberant

Lucy was known for her cheerful personality. No matter the situation, she always found a way to laugh or bring a smile to those around her. Her friends appreciated her lively spirit, as she could lift their moods even on the darkest days. One day, while playing games at a party, she uttered an exuberant laugh that brightened everyone's evening. Based on this context, what does exuberant mean?