iridescent

Adjective

• having a play of lustrous rainbow colors
  • an iridescent oil slick
    
  • nacreous (or pearlescent) clouds looking like mother-of-pearl
    
  • a milky opalescent (or opaline) luster
    

• varying in color when seen in different lights or from different angles
  • changeable taffeta
    
  • chatoyant (or shot) silk
    
  • a dragonfly hovered, vibrating and iridescent
    

Related words

• Synonyms: 
  nacreous , opalescent , opaline , pearlescent , changeable , chatoyant , shot