The word "most amplified" means the highest degree of amplification. The antonyms for this term are "least amplified" or "barely audible," which represent the lowest degree of sound intensity. Another antonym for this term is "muted," which means to reduce or soften the sound. For instance, if a person wants to enjoy a quiet environment, they may ask their friend to mute their music. Besides, another antonym for the term is "diminished," which refers to the decreasing of the sound. For example, when we turn down the volume of a stereo, the sound is diminished. Thus, there are various antonyms for the term "most amplified" that represent lower degrees of sound volume.