► perfectof the best possible type or standard, without any faults or mistakes: We had perfect weather the whole trip. Michiko’s English is perfect.
► flawless perfect, with no mistakes or unattractive marks. Used about the way someone performs or the way an object or someone’s skin looks: The dance company gave a flawless performance.
► impeccable formal so good that you cannot find anything wrong. Used about behavior or the ability to choose good things: The food at the restaurant was delicious and the service was impeccable.
► seamless used about a process or activity that happens perfectly and without mistakes: We will work hard to make the students’ transition to high school as seamless as possible.