1. A state of being partially or carelessly dressed; casual or negligent attire.
Usage: Usually plural or used as a mass noun; Somewhat formal or literary
2. A loose, informal robe or dressing gown worn at home.
Usage: Archaic or historical; From French déshabillé

Examples

• She answered the door in her dishabilles, not expecting visitors.
• The portrait showed the duchess in dishabilles, a more intimate and relaxed pose.
• Morning dishabilles were common in the household before the family dressed for the day.
• He preferred the comfort of dishabilles while working at home.
• The fashion of dishabilles became popular among the aristocracy in the 18th century.
• She wrapped herself in her favorite dishabille and settled in to read.