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
dunned
verb
as in annoyed
Synonyms & Similar Words
Relevance
- annoyed
- irked
- worried
- exasperated
- nettled
- irritated
- vexed
- riled
- peeved
- rankled
- bedeviled
- galled
- tormented
- chafed
- hassled
- fretted
- persecuted
- dogged
- gnawed
- aggravated
- troubled
- inconvenienced
- rasped
- piqued
- pestered
- got
- roiled
- beleaguered
- deviled
- harassed
- grated
- besieged
- bothered
- beset
- devilled
- bugged
- put out
- disturbed
- distressed
- incensed
- enraged
- infuriated
- chivvied
- plagued
- outraged
- afflicted
- angered
- vext
- provoked
- maddened
- antagonized
- agitated
- perturbed
- inflamed
- chivied
- obtruded
- invaded
- trespassed
- enflamed
- encroached
- infringed
- intruded (upon)
- butted in
- cut in (on)
Antonyms & Near Antonyms
- ignored
- disregarded
- obliged
- slighted
- left
- forgot
- appeased
- gratified
- pleased
- delighted
- satisfied
- disarmed
- placated
- mollified
- conciliated
- consoled
- contented
- comforted
- gladdened