Fancy clothes are garments that are considered to be more luxurious and fashionable than everyday wear. FINERY, a 6-letter word, is a term used to describe clothing of an especially fine quality. REGALIA, a 7-letter word, refers to clothing that is worn for special occasions or ceremonies, such as a coronation. Gladrags, an 8-letter word, is a slang term for clothing that is considered to be fashionable and attractive. All three terms can be used to refer to fancy clothes.