"Matte finish" refers to a surface that is not shiny, glossy, or reflective. It has a smooth texture with a more subdued and light-absorbing appearance. Full definition
It's very well done with matte finish on the back, polished metal around the edges, and a slightly raised edge around the glass front display. (zdnet.com)
Since the texture for these are matte, the cap has been kept in matte finish with color coded packaging. (notonlymakeup.net)
While featuring a plastic construction, the build quality certainly doesn't feel cheap, and the textured matte finish of the back panel allows for plenty of grip as well. (androidauthority.com)