Sunday-go-to-meeting clothes is an old-fashioned term that refers to dressy or formal attire worn to church on Sundays. In modern times, people may use the terms "Sunday best" or "church clothes" to denote the same thing. However, there are other synonyms that can be used, such as "dress attire," "formalwear," " Sunday attire," "nice clothes," or simply "dressy clothing." The term is often associated with a more conservative and traditional dress code, but in today's society, people have more freedom to express their personal style in their choice of clothing for church or other formal events. These synonyms reflect the changing attitudes and styles associated with dress codes for Sunday worship in modern times.