When it comes to describing something that is quicker or faster, the word "rapider" might spring to mind. However, there are several synonyms that can effectively convey the same meaning. One alternative is "swifter", which implies a high degree of speed and efficiency. Another option is "fleet", which suggests a nimble or agile pace. Additionally, the term "speedier" can be used to describe something that occurs at a faster rate. Furthermore, "quicker", "hastier", and "accelerated" are all suitable alternatives for "rapider", each conveying a sense of increased speed and urgency. Ultimately, these synonyms provide ample choices for expressing the notion of something being rapid or fast.