Light"ness, n. [From Light not heavy.] The state, condition, or quality, of being light or not heavy; buoyancy; levity; fickleness; nimbleness; delicacy; grace.

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

Light"ness, n. [From Light bright.] 1. Illumination, or degree of illumination; as, the lightness of a room. Chaucer.

2. Absence of depth or of duskiness in color; as, the lightness of a tint; lightness of complexion.

• the condition of being illuminated
  
• the relative whiteness or transparency of a colour
  
• the state of having little weight, or little force
  
• agility of movement
  
• freedom from worry
  
• levity