undressed Syllabification: (un·dressed)Pronunciation: /ˌənˈdrest/Definition of undressed adjective 1wearing no clothes:he was undressed and ready for bed 2not treated, processed, or prepared for use:undressed deerskin a rough, undressed stone slab 3(of food) not having a dressing:an undressed saladundressed in other Oxford dictionaries Definition of undressed in the British & World English dictionary