George Bryan Brummell was an iconic figure in the 18th century known for his impeccable fashion sense and influential social status. He was often referred to as "Beau Brummell," a popular nickname during his time. Other synonyms that can be used to describe him include dandy, elegant, fashion plate, and trendsetter. He was also considered a arbiter of men's fashion and was known for his "dressing the part" style. His influence on fashion and society can still be seen today, and his legacy continues to be studied and admired by many.