dull
verb
dulled; dulling; dulls
: to make dull
dull a knife's edge
: to become dull
The blade dulled with use.
Examples of dull in a Sentence
Fog dulled the morning sunlight.
Special earplugs dulled the sound of the chain saw.
His hair dulled as he aged.
The dog's eyes dulled as he got sick.
She takes medicine to dull the pain.
Fear dulled his need for adventure.
The knife was dulled from use.
The blade should be replaced as soon as it dulls.
Recent Examples on the Web
Concern has grown over on whether AI will become a catalyst that enriches humanity or a technological toxin that dulls human intelligence while wiping out millions of high-paying jobs.
—
Alexandra Kukulka, Chicago Tribune, 27 May 2026
Freezing can dull the garlic and lemon flavors, Schwan says, so adding those ingredients back in helps the hummus taste fresh again.
—Olivia McIntosh, Martha Stewart, 25 May 2026
At some point, the bracket creep is going to overreach into the point of diminishing marginal returns — dulling regular seasons and perhaps ultimately even eventually interest in the postseasons.
—Kansas City Star, 24 May 2026
For longer storage, ripe tomatoes can be kept in the refrigerator, but note that chilling can dull their flavor and change their texture.
—Katie Rosenhouse, Southern Living, 22 May 2026
See All Example Sentences for dull
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Alexandra Kukulka, Chicago Tribune, 27 May 2026
Freezing can dull the garlic and lemon flavors, Schwan says, so adding those ingredients back in helps the hummus taste fresh again.
—Olivia McIntosh, Martha Stewart, 25 May 2026
At some point, the bracket creep is going to overreach into the point of diminishing marginal returns — dulling regular seasons and perhaps ultimately even eventually interest in the postseasons.
—Kansas City Star, 24 May 2026
For longer storage, ripe tomatoes can be kept in the refrigerator, but note that chilling can dull their flavor and change their texture.
—Katie Rosenhouse, Southern Living, 22 May 2026
See All Example Sentences for dull
Cite this Entry
“Dull.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dull. Accessed 10 Jun. 2026.
Copy CitationKids Definition
dull
1 of 2 adjective
1
: mentally slow : stupid
2
: listless
3
: slow in action : sluggish
4
: lacking sharpness of edge or point
5
: lacking brilliance or luster
6
: not ringing, sharp, or intense
a dull roar
7
8
: tedious, uninteresting
a dull lecture
9
: slightly grayish
a dull blue
dull
2 of 2 verb
: to make or become dull
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