The term "most sounding" suggests something that is loud or powerful, but it is possible to describe something with the opposite meaning. Some antonyms for "most sounding" could include words such as quiet, subdued, muted, hushed, or gentle. These words imply a sense of restraint or softness, rather than a booming or overpowering sound. Other antonyms might include words such as faint, muffled, dim, or distant. These adjectives suggest a more distant, muted sound that is not as noticeable or forceful as something that is "most sounding.