featureless

It was hard to tell — each unit had the same gray, featureless quality that made you feel like you might still be in trouble for something.

From Earth, the Sun is so bright that it appears like a featureless disc.

Some of the structures that survived — shopping centers, office buildings, a church, a school building, apartments, an occasional house — rose out of an otherwise featureless, battered and gray landscape.

There's Travis who in 2009 mauled his owner's friend so severely that it left her blind and with a featureless face.

Their faces are featureless except for a crown of frilly pink gills.