Light'ness, n.

(lĭt'nes), n. 1. Want of weight; levity; —the contrary to heaviness; as, the lightness of air compared with water; lightness of the animal spirits. 2. Inconstancy; unsteadiness; the quality of mind which disposes it to be influenced by trifling considerations. Such is the lightness of you common men. Shak.

3. Levity; wantonness; lewdness; unchastity.
4. Agility; nimbleness.
5. (Fine Arts.) Freedom from weight or clumsiness.

Syn.—Levity; volatility; instability; inconstancy; unsteadiness; giddiness; flightiness; airiness; gayety; liveliness; agility; nimbleness; sprightliness; briskness; swiftness; ease; facility.