Dull 

it means Boring

Today Is a dull day

Dull by AC November 24, 2003

dull 

Welsh/UK slang

(adj): stupid, slow, 'not too bright'

"She's dull as fuck man."

dull by welshwords17 April 19, 2005

dull 

not too bright

Tomorrow is gonna be a dull day

dull by mr welsh August 27, 2009

Dull 

boring or not fun; used to describe a party

the opposite of "live"

Mike: This party sucks.

George: I know, its so dull.

Mike: This is such a dull night.

Dull by watermelonman123 November 20, 2011

Dull 

Not interesting or exciting in any way

She wrote dull, respectable articles for the local newspaper.
He's pleasant enough, but deadly dull.

Dull by polakaw January 18, 2021

dull 

Jon DesJardins

dull has a picture of Jon DesJardins next to it in the dictionary

dull by phillygoat June 25, 2008

Dull 

opposite of lit.

A very boring party or social gathering.

After being at the party for a few minutes, Brooke texted her friends saying, "Don't come to the party, it's super dull."

Dull by @EmilyTheFlannelGirl June 22, 2016