Elsewhere the floor of the valley is a featureless, treeless plain.
But the featureless desert led many Tomahawks to wander away like so many lost patrols, according to Pentagon studies.
A silhouette is an outline of a person or object with a featureless interior.
All forms of monism from Plotinus downwards tend to ignore personal individuality and volition, and merge all finite existence in the featureless unity of the Absolute; this, indeed, is what inspires the passion of the protest against monism.
Nevertheless these two insignificant works, as points to hold and lines to defend on an otherwise featureless battlefield, became the centres of gravity of the battle.