dishabille

noun

1. (countable, uncountable)Extreme casual or disorderly dress, for example, with the shirttail out, sleeves unbuttoned, etc.

   “When I rallied him for viſiting me in ſuch a diſhabille, he ſtood a tiptoe to view himſelf in the glaſs; and owning I was in the right, ſaid that he would go and dreſs himſelf before dinner.”

   “Wherever they went, some pattened girl stopped to curtsy, or some footman in dishabille sneaked off. Yet this was an abbey!”

   “A little after 3:15 o’clock yesterday afternoon a stream of people, hatless, coatless, some in an even worse state of dishabille rushed down the stairs or to the elevators of every one of the downtown buildings and onto the streets, their faces showing every sign of terror.”

2. (countable, uncountable)A loose, negligent dress.

   “She wore a dishabille of mignonette-green silk and bead-diapered head-dress that added several inches to her height […]”