Dunkel in German means ‘dark’ and applies to the actual color of the beer. A Dunkel Lager is a dark German Lager.
Dunkel is the original style of lager, serving as the forerunner to the pale lagers of today. They originated in and around Bavaria, and are widely brewed both there and around the world.
This is often what the average consumer is referring to when they think of dark beer. At their best these beers combine the dryish chocolate or licorice notes associated with the use of dark roasted malts and the roundness and crisp character of a lager.
Examples brewed in and around Munich tend to be a little fuller-bodied and sometimes have a hint of bready sweetness to the palate, a characteristic of the typical Bavarian malts used.