dunning; duns; dunned; dunner; dunnest

Use the adjective dun for something that’s a dusty grey brown color, like a dun cow, or the dun entry rug that used to be white.

The noun and adjective forms of dun all relate to color. It probably comes from German roots, and may be related to the word dusk, as a dun color has a dull quality that you might associate with dusk or fading light. A dun horse is called a Dun. As a verb, to dun means to attempt to collect an overdue bill. You might dun your brother for that $10 he owes you from 3 months ago.

Definitions of dun
  1. noun
    a color or pigment varying around a light grey-brown color
    “she wore dun
    synonyms: fawn, grayish brown, greyish brown
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    type of:
    light brown
    a brown that is light but unsaturated
  2. noun
    horse of a dull brownish grey color with a dark tail and mane
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    type of:
    mount, riding horse, saddle horse
    a lightweight horse kept for riding only
  3. adjective
    of a dull greyish brown to brownish grey color
    “the dun and dreary prairie”
    being, having, or characterized by hue
  4. verb
    make a dun color
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    type of:
    make dark or darker
  5. verb
    persistently ask for overdue payment
    “The grocer dunned his customers every day by telephone”
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    type of:
    request urgently and forcefully
  6. verb
    treat cruelly
    synonyms: bedevil, crucify, frustrate, rag, torment
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    drive up the wall; get on someone's nerves
    make ineffective or powerless
    badger, beleaguer, bug, pester, tease
    annoy persistently
    oppress, persecute
    cause to suffer
    oust politically
    type of:
    beset, chevvy, chevy, chivvy, chivy, harass, harry, hassle, molest, plague, provoke
    annoy continually or chronically
  7. verb
    cure by salting
    dun codfish”
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    type of:
    prepare by drying, salting, or chemical processing in order to preserve
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