A paint that is not transparent by nature or intentionally. A dense paint that obscures or totally hides the underpainting in any given artwork. ? See Gouache, Acrylics<br><br>(1) Not transparent. (2) To cover flaws in negative with tape or opaquing paint. Also called block out and spot.<br><br>Something that cannot be seen through; the opposite of transparent, although something through which some light passes would be described as translucent.(pr. oh-PAYK)Also see opacity.