lightness

noun

1.
a feeling of joy and pride
elation high spirits
Derived from:
light
2.
the property of being comparatively small in weight
weightlessness
Antonym:
heaviness
Derived from:
light
3.
the gracefulness of a person or animal that is quick and nimble
agility legerity lightsomeness nimbleness
Derived from:
light
4.
having a light color
Antonym:
darkness
Derived from:
light
5.
the visual effect of illumination on objects or scenes as created in pictures
light
Derived from:
light
6.
the trait of being lighthearted and frivolous
lightsomeness
Derived from:
light