Stupidity; slowness of comprehension; weakness of intellect; indocility; as the dullness of a student.

Want of quick perception or eager desire.

Heaviness; drowsiness; inclination to sleep.

Heaviness; disinclination to motion.

Sluggishness; slowness.

Dimness; want of clearness or luster.

Bluntness; want of edge.

Want of brightness or vividness; as dullness of color.