The term "impeccable" refers to something that is flawless or without any faults. It is often used to describe high standards of quality, behavior, or performance. For example, an impeccable reputation indicates that a person is well-respected and has never done anything wrong. In various contexts, such as fashion or service, "impeccable" signifies excellence. An impeccable outfit might be one that is perfectly tailored and stylish, while impeccable customer service means that every aspect of the service meets or exceeds expectations.