Toned down means to make something less strong, intense, or noticeable. If you want to convey this meaning in a different way, you could use synonyms such as mellowed, moderated, softened, restrained, subdued, tempered, diluted, or weakened. These words can all be used to describe the process of reducing the impact of something, whether it's a color, flavor, sound, or emotion. Utilizing these synonyms can help you avoid repetition in your writing and add more variety to your vocabulary. It's up to you to choose which one of these terms fits best for conveying what you mean.