noun (1)
light·​ness | \ ˈlīt-nəs How to pronounce lightness (audio) \

Definition of lightness

 (Entry 1 of 2)

1 : the quality or state of being illuminated : illumination
2 : the attribute of object colors by which the object appears to reflect or transmit more or less of the incident light — compare brightness sense 2, hue sense 2c, saturation sense 4


noun (2)

Definition of lightness (Entry 2 of 2)

1 : the quality or state of being light especially in weight
2 : lack of seriousness and stability of character often accompanied by casual heedlessness
3a : the quality or state of being nimble
b : an ease and gaiety of style or manner
4 : a lack of weightiness or force : delicacy

First Known Use of lightness

Noun (1)

before the 12th century, in the meaning defined at sense 1

Noun (2)

12th century, in the meaning defined at sense 1

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The first known use of lightness was before the 12th century

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a usually brief trip or an expedition

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