Definitions

1. noun

a state or condition of being dull or uninteresting

“The dullness of the movie made it hard to stay awake during the entire duration.”

2. noun

the quality of being dull or uninteresting

“The dullness of the landscape made it seem endless.”

3. noun

a lack of brightness or intensity in something

“The dullness of the light made it difficult to read the text.”