Antonyms of noun lightness

2 of 6 senses of lightness

Sense 2
lightness, weightlessness -- (the property of being comparatively small in weight; "the lightness of balsa wood")
       Antonym of heaviness (Sense 1)
      => heaviness, weightiness -- (the property of being comparatively great in weight; "the heaviness of lead")

Sense 4
lightness -- (having a light color)
       Antonym of darkness (Sense 5)
      => darkness -- (having a dark or somber color)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun lightness

6 senses of lightness

Sense 1
elation, high spirits, lightness -- (a feeling of joy and pride)
       => joy, joyousness, joyfulness -- (the emotion of great happiness)

Sense 2
lightness, weightlessness -- (the property of being comparatively small in weight; "the lightness of balsa wood")
       => weight -- (the vertical force exerted by a mass as a result of gravity)

Sense 3
agility, legerity, lightness, lightsomeness, nimbleness -- (the gracefulness of a person or animal that is quick and nimble)
       => gracefulness -- (beautiful carriage)

Sense 4
lightness -- (having a light color)
       => value -- (relative darkness or lightness of a color; "I establish the colors and principal values by organizing the painting into three values--dark, medium...and light"-Joe Hing Lowe)

Sense 5
light, lightness -- (the visual effect of illumination on objects or scenes as created in pictures; "he could paint the lightest light and the darkest dark")
       => visual property -- (an attribute of vision)

Sense 6
lightsomeness, lightness -- (the trait of being lighthearted and frivolous)
       => giddiness, silliness -- (an impulsive scatterbrained manner)