A woman's loose dressing gown, often of soft, delicate fabric.(noun)
Informal or incomplete attire.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "negligee" in a sentence
"She had on what could not, by any stretch of his imagination, be termed a negligee, nor on the other hand, could anyone call it a bathrobe."
"She was wearing some kind of negligee, Alexei could see, but it was nothing more than a swathe of silk, one strap loosened from her shoulder."
"A husband walks into Victoria's Secret to purchase a sheer negligee for his wife."