dun
[adjective]
Synonyms: dark, caliginous, dim, dusk, dusky, gloomy, lightless, murky, obscure, somber
[verb]
Synonyms: worry, annoy, bedevil, beleaguer, gnaw, hagride, harass, needle, pester, plague

[TahlilGaran] English Synonym Dictionary ▲

dun /dʌn/ noun [uncountable]
[Language: Old English; Origin: dunn]
a brownish-grey colour
—dun adjective

[TahlilGaran] Dictionary of Contemporary English ▲