unbrightness

• a word derived from bright.
  bright

  adjective

  radiating or reflecting light; luminous; shining.

Related Words

• blazing
• brilliant
• dazzling
• flashing
• glistening
• glittering
• golden
• intense
• luminous
• radiant
• shimmering
• shiny
• silvery
• sparkling
• sunny
• vivid