Southern England| Komparatiivi | more iridescent |
| Superlatiivi | most iridescent |
(not comparable) Producing a display of lustrous, rainbow-like colors; prismatic.
Iridescence in soap bubbles
Brilliant, lustrous, or colorful.
Tempering colours are formed by heating steel, forming a thin oxide-film on the surface. The colour indicates the temperature it was heated to, making it one of the earliest practical uses of iridescence.
(not comparable) Producing a display of lustrous, rainbow-like colors; prismatic.
Fuel on top of water creates a thin film, which interferes with the light, producing different colours. The different bands represent different thicknesses in the film. This phenomenon is known as thin-film interference.