a tailored dress of medium or heavy fabric, styled like a coat and worn in place of a suit or similar outfit.

Origin of coatdress

First recorded in 1910–15; coat + dress Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for coat dress

coat dress


a lightweight button-through garment that can be worn either as a dress or as a coat
formerly, a dress tailored and styled like a coat
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012