matte /mæt/noun 4adjective 1verb 1forms 5 noun4 •A decorative border around a picture used to inset and center the contents of a frame.The image is a perfect square of 8 cm (with white matte border the total dimensions are 14 cm tall by 11 cm wide). •A background, often painted or created with computersMatte painting is a tool that filmmakers can use to create a scene that is impossible to achieve with conventional cinematographic means. •The molten metal sulfide phases typically formed during smelting of copper, nickel, and other base metals. •An instrument for producing a dull, lustreless surface. adjective1 •Dull; not reflective of light.Flat or matte paint allows a deep color expression on the walls while also hiding flaws that may be inherent on the painted surface. verb1 •To produce a dull, lustreless surface on (metal). formsmatted · matting · mattes · more matte · most matte