"State of the art" is a well-known phrase used to describe the latest and most advanced technology available. Sometimes, using different words to describe the same thing can make your writing more interesting. Here are some possible synonyms to use instead of "state of the art": cutting-edge, top-of-the-line, advanced, innovative, latest, modern, high-tech, futuristic, newfangled, and state-of-the-art. These synonyms can add a fresh perspective to your writing and make it more engaging. Also, be careful not to overuse any one word or it may lose its impact and become repetitive.