The phrase "perfectly done" is often used to describe something that has been completed to the highest standard or level of excellence. However, there are many other ways to express this idea. Some synonyms for "perfectly done" include flawlessly executed, expertly finished, impeccably accomplished, skillfully carried out, masterfully achieved, faultlessly performed, precisely accomplished, and ideally completed. Each of these terms conveys a sense of thoroughness, precision, and mastery in completing a task, project, or activity. Using synonyms for "perfectly done" can help to add variety and nuance to your writing or speech, making it more engaging and interesting for your audience.