When it comes to fashion, the phrase "best-dressed" can be interpreted in various ways. One synonym for it is "stylish," which suggests a certain flair and attention to detail in one's outfit. Another similar term is "well-dressed," which indicates that someone's clothing is appropriate and coordinated. "Impeccable" can also be used to describe someone who has a flawless sense of dressing. Another synonym for "best-dressed" is "dapper," which implies a sharp and sophisticated appearance. Similarly, "suave" can refer to someone who exudes a debonair charm, notably in their dress sense. Ultimately, these synonyms all refer to people who take the time and care to present themselves in a polished and fashionable manner.