dun
1 of 4adjective
ˈdən 
1
a
: having a slightly brownish dark gray color : having the color dun (see dun entry 2 sense 2)
b
of a horse : having a grayish-yellow coat with black mane and tail
2
: marked by dullness and drabness
dunness
ˈdən-nəs
noun dun
2 of 4noun (1)
1
: a horse with a grayish-yellow coat and a black mane and tail : a dun horse
2
: a variable color averaging a nearly neutral slightly brownish dark gray
3
: a subadult mayfly
also, fishing : an artificial fly tied to imitate such an insect
dun
3 of 4verb
dunned; dunning
transitive verb
1
: to make persistent demands upon for payment
dunning their members for contributions
2
: plague, pester
dunned by troubles literary and monetary 
Irish Digest
Irish Digestdun
4 of 4noun (2)
1
: someone who makes persistent demands upon people for payment : a person who duns (see dun entry 3)
2
: an urgent request
especially : a demand for payment
Synonyms
Noun (2)
- claim
- demand
- importunity
- requisition
- ultimatum
See all Synonyms & Antonyms 
Word History
Etymology
Adjective and Noun (1)
Middle English, from Old English dunn — more at dusk
Verb
origin unknown
Noun (2)
noun derivative of dun entry 3
First Known Use
Adjective
before the 12th century, in the meaning defined at sense 1a
Noun (1)
15th century, in the meaning defined at sense 1
Verb
circa 1648, in the meaning defined at sense 1
Noun (2)
1628, in the meaning defined at sense 1
Kids Definition
dun
noun
ˈdən
: a slightly brownish dark gray
dunning
verb
as in annoying
Synonyms & Similar Words
Relevance
- annoying
- hassling
- rasping
- nettling
- tormenting
- irritating
- exasperating
- aggravating
- worrying
- gnawing
- vexing
- rankling
- dogging
- grating
- harassing
- deviling
- persecuting
- troubling
- pestering
- riling
- irking
- bedeviling
- fretting
- bugging
- peeving
- galling
- devilling
- roiling
- getting
- besieging
- chivvying
- chafing
- inconveniencing
- putting out
- maddening
- piquing
- bothering
- infuriating
- besetting
- disturbing
- beleaguering
- distressing
- antagonizing
- provoking
- plaguing
- chivying
- enraging
- afflicting
- agitating
- obtruding
- angering
- outraging
- perturbing
- trespassing
- intruding (upon)
- inflaming
- encroaching
- invading
- incensing
- infringing
- butting in
- enflaming
- cutting in (on)
Antonyms & Near Antonyms
- ignoring
- forgetting
- placating
- disregarding
- leaving
- appeasing
- obliging
- conciliating
- slighting
- gratifying
- disarming
- pleasing
- satisfying
- mollifying
- delighting
- comforting
- contenting
- consoling
- gladdening
- leading on
- leading one down the garden path
- leading question
- leading rein
- leading seventh
- leading stone
- leading strings
- leading to
- leading tone
- leading truck
- leading up
- leading up to
- leading wheel
- leading wind
- leading with
- leading-edge
- leading-note seventh
- leading-tone seventh
- leadingly
- leadings
- leadless
- leadman
- leadmen
- leadoff
- leadoffs