Stratus clouds look like featureless gray to white sheets of cloud. Meandering streams flowed slowly over the resulting broad and almost featureless plains. Melton is located on mostly flat, largely featureless, former volcanic plains. The western Riverina consists largely of featureless saltbush plain. Iwo Jima is unusually flat and featureless for a volcanic island. Cyndor is depicted as a towering, featureless humanoid with powerful block-like limbs. By contrast Newtonian fluids have flat featureless surfaces when still. Erosion over many millions of years created a relatively featureless plain. The park by this time was a relatively featureless and large lava plain. This is especially true if flying in the dark or over featureless terrain. Pilots are also susceptible to spatial disorientation during night flight over featureless terrain. Sponge reefs provide structure on the otherwise relatively featureless continental shelf. Slender Man is a tall, thin character, with a featureless white face and head. He ingested a serum which made his face permanently featureless and malleable. However, it is an almost featureless habitat.