Verrucose is an adjective that describes a surface that has wart-like bumps or roughness. There are several synonyms that can be used to describe similar surfaces. One synonym for verrucose is warted, which refers to a surface that has small, raised bumps resembling warts. Another synonym is rough, which refers to a surface that is not smooth and has an uneven texture. Pebbled is another synonym that can be used to describe a surface with small, rounded protrusions, while knobby is a synonym that indicates larger rounded bumps. These synonyms can be used to describe a wide range of surfaces, from skin conditions to geological features.