The opposite of more percussive is less percussive. Percussive refers to the quality of sound that is produced by striking or tapping an object. Less percussive implies a softer, gentler sound, without the sharpness and abruptness associated with percussive sounds. Antonyms for percussive include soft, mellow, smooth, and melodic. Depending on the context, other antonyms for percussive might be harmonious, consonant, or even silent. Less percussive could also mean more melodic, more flowing, or more musical. In all cases, the opposite of percussive implies a different quality of sound that is more subdued and smooth.