Definitions

1. noun

The quality or state of being light; lack of weight or heaviness

“The lightness of the fabric made it ideal for summer clothing.”

2. noun

The quality or state of being carefree or cheerful

“She felt a sense of lightness after finally resolving the issue.”

3. noun

The quality or state of being insubstantial or lacking in importance

“The lightness of the issue was evident in the lack of attention it received.”