Well-written is a term commonly used to describe written material that is of high quality and is presented in a clear and concise manner. However, when it comes to writing, it is important to use a variety of vocabulary to avoid repetition and keep the reader engaged. Thus, instead of constantly using "well-written," one can use synonyms such as articulate, eloquent, polished, refined, proficient, expertly crafted, masterfully written, immaculately composed, flawlessly presented, or finely-worded. These synonyms not only convey the same overall meaning as well-written, but also add depth and variety to your writing.