- the state or quality of being light in weight: the amazing lightness of the new metal.
- the quality of being agile, nimble, or graceful.
- lack of pressure or burdensomeness.
- lack of seriousness; levity in actions, thoughts, or speech: That kind of lightness seemed out of place.
- gaiety of manner, speech, style, etc.; cheerfulness: His lightness was just what the party needed.
- the state or quality of being light or illuminated.
- thin or pale coloration.
- the relative degree to which an object reflects light, especially light of complementary or nearly complementary colors.
- the attribute of an object or colour that enables an observer to judge the extent to which the object or colour reflects or transmits incident light
