Certainly, the dull appearance of the new car washer bore out the theory that the manager had made a poor choice.

Grosgrain has a very dull appearance with little luster but is very strong.

Maybe the dull appearance wasn't entirely its fault.

The casket had a dull, bronze appearance to it, but what material it was actually made from is unknown.

They found that the stones were rapidly abraded, and thus retained a dull appearance.

This produces a dull, orange-gold appearance on the body coat which is lost with the spring shed.

They then had a dull gray appearance but were not dirty by any means.

Sediments, the proportion of which varies with the source, give the salt a dull gray appearance.

Their dull appearance camouflages them on the ground, especially when on the nest.

This can make the surface soft and "spongy" with a dull or matte appearance.