- [noun] a mixture of sulfides that forms when sulfide metal ores are smelted
- [noun] the property of having little or no contrast; lacking highlights or gloss
Synonyms: flatness, lusterlessness, lustrelessness, mat, matt
- [verb] change texture so as to become matted and felt-like; "The fabric felted up after several washes"
Synonyms: felt, felt up, mat up, matt-up, up, mat
- [adjective] not reflecting light; not glossy; "flat wall paint"; "a photograph with a matte finish"
Synonyms: flat, mat, matt