Improvement is a continuous process, and as such, the need for words to express improvements is equally essential. Some synonymous words for "improved" might include: enhanced, advanced, ameliorated, perfected, bettered, heightened, developed, upgraded, refined, and optimized. Each of these words conveys the notion of improvement but in a different way and for various purposes. For instance, refined implies a level of detailed attention to improving the quality of something, while upgraded implies replacing something old with something new and improved. Whatever the synonym, the objective is to highlight the advancement, progress, and continued efforts to make something better, be it a process, product or idea.