lustrous

/ˈlʌstrəs/

Other forms: lustrously

In shampoo commercials, the hair you see swinging is lustrous. It is brilliant, in the shiny sense.

Lustrous has its root in the Latin lustrare which means "to illuminate or shine light over." When something is lustrous, it reflects light in a glossy and shiny way. A bright smile and a glowing reputation are both lustrous. If someone has a long and successful work history, you might say their career is illustrious, meaning it has been lustrous for a long time.

Definitions of lustrous

1. adjective

   reflecting light
   “lustrous auburn hair”

   synonyms: glistening, glossy, sheeny, shining, shiny

   bright

   emitting or reflecting light readily or in large amounts
2. adjective

   made smooth and bright by or as if by rubbing; reflecting a sheen or glow
   “she brushed her hair until it fell in lustrous auburn waves”

   synonyms: bright, burnished, shining, shiny

   polished

   perfected or made shiny and smooth
3. adjective

   brilliant
   “set a lustrous example for others to follow”

   “lustrous actors of the time”

   synonyms:

   glorious

   having or deserving or conferring glory