When it comes to antonyms for the word "most percussive," we have quite a few options to choose from. The word percussive is typically used to describe something that produces a sharp, striking sound. Therefore, antonyms for this word would be words that describe something that is soft and mellow or gentle and soothing. Some possible antonyms for "most percussive" could be "smooth," "mellow," "calm," "gentle," "quiet," "subtle," "peaceful," "harmonious," and "tranquil." Each of these words conveys a sense of calm and peacefulness which is entirely opposite to the sharp and jarring sound of percussive.