Dullness refers to a lack of radiance and vibrancy. Skin that appears lackluster, tired, and without its natural glow is considered dull.

In a medical context, dullness often refers to a muffled sound heard during percussion of the body, indicating an underlying density. This is unrelated to skin appearance.

Dullness in skin describes a complexion that lacks its natural brightness and luminosity. It can appear flat, uneven in tone, and lacking a healthy glow.

Dullness can be caused by several factors including dehydration, lack of exfoliation allowing dead skin cells to accumulate, poor circulation, and environmental stressors like pollution. Lifestyle factors such as smoking and poor diet can also contribute.