iridescent
1. [ adjective ] varying in color when seen in different lights or from different angles
Synonyms: chatoyant shot changeable
Examples:

"changeable taffeta" "chatoyant (or shot) silk" "a dragonfly hovered, vibrating and iridescent"

Related terms: colorful
2. [ adjective ] (color) having a play of lustrous rainbow-like colors
Synonyms: opalescent pearlescent opaline nacreous
Examples:

"an iridescent oil slick" "nacreous (or pearlescent) clouds looking like mother-of-pearl" "a milky opalescent (or opaline) luster"

Related terms: bright
Similar spelling:   iridesce
  iridescence
  iridectomy
  Iridaceae
  iridaceous