The console's form is designed to be unobtrusive and minimalistic. Societies tend to use sophisticated but unobtrusive technologies. The observant style requires the scholar to observe in an unobtrusive manner. Both these terms relate to subtle, unobtrusive beauty. Widget engines speed work by keeping commonly used widgets accessible while unobtrusive. It is a very unobtrusive and secretive bird. The song of this unobtrusive bird is quiet and mumbled. Filter collection is especially useful for personal bioaerosol sampling since they are light and unobtrusive. The mission was a scene of quiet, humble and unobtrusive heroism and the Indians' shelter. An O-lock is lightweight and unobtrusive. He also considered the DJ commentary to be slick and unobtrusive. Mountaineering is popular in the park and only unobtrusive clean climbing is allowed. This is unroofed, in an attempt to render it as unobtrusive as possible. The castle has two entrances, an unobtrusive service entrance and an ornate main entrance. The genre is said to evoke an "atmospheric", "visual", or "unobtrusive" quality.