dullness

American  

[duhl-nis] / ˈdʌl nɪs /

noun

1. the quality or condition of being dull; bluntness or lack of sharpness, as of a blade or point.

2. a boring or uninteresting quality.

3. a lack of energy or liveliness; sluggish quality.

4. the quality of lacking light, brightness, clarity, or color; dimness.

5. a lack of intelligence; slowness of mind or thinking; stupidity.

6. a lack of intensity, acuteness, or keenness, as of pain or perception.

---

Explanation

When something is either muted and drab or incredibly boring, it has the quality of dullness. If you want to counteract your bedroom's dullness, why don't you paint the walls bright yellow with purple polka dots? The dullness of late winter gradually ends when spring finally arrives with its bright colors and shining sunlight. The dullness of your most boring class will eventually come to an end as well, when the bell rings and it's time for lunch. Dullness describes a lack of vividness or excitement, and it can also be used for a lack of intelligence: "My dog is sweet, but her dullness makes it impossible to teach her any tricks."

Example Sentences

The manufacturing hub, which anchors the region that is home to auto giant Toyota, is Japan’s fourth most-populous city and, according to a decade-old newspaper poll that still stings here, number one in dullness.

From The Wall Street Journal • Nov. 4, 2025

Excessive coloring of the hair to lighten the color can cause damage to the hair shaft leading to dullness, increased hair fragility, and breakage.

From National Geographic • Aug. 22, 2023

In the role of the younger Bucky, Alexandre Gonin finds a sense of awkward seriousness that never tips over into dullness.

From New York Times • Mar. 26, 2023

“There was just a weird dullness on defense.”

From Seattle Times • Dec. 2, 2022

The dullness of military life, the endless repetition of duties, the standing in line to eat, to use the bathroom, to shave, served as no distraction at all.

From "Middlesex: A Novel" by Jeffrey Eugenides