lightness

(noun) a feeling of joy and pride. Synonyms: elation, high spirits.

(noun) the property of being comparatively small in weight. Synonyms: weightlessness. Examples: "The lightness of balsa wood."

(noun) the gracefulness of a person or animal that is quick and nimble. Synonyms: agility, legerity, lightsomeness, nimbleness.

(noun) having a light color.

(noun) the visual effect of illumination on objects or scenes as created in pictures. Synonyms: light. Examples: "He could paint the lightest light and the darkest dark."

(noun) the trait of being lighthearted and frivolous. Synonyms: lightsomeness.