When it comes to formal events, a man's dress code can vary. Whether it's a black-tie wedding or a gala event, a man's outfit should be sophisticated and elegant. There are several synonyms for the term "man formal dress," and they all suggest an attire that is appropriate for a formal occasion. A tuxedo, a suit and tie, a dinner suit, or a dress suit all indicate a dress code that is reserved for formal events and occasions. While the style and color may differ, these synonyms all convey the same message: that men should dress with elegance and sophistication when attending a formal affair.