What does inaudible mean?

The term "inaudible" refers to something that is "too quiet to be heard." This definition captures the essence of the word, which combines the prefix "in-" meaning "not" and "audible," which means able to be heard. Therefore, if a sound is inaudible, it exists at such a low volume that it cannot be perceived by the human ear.

While "clear and loud," "completely silent," and "unpleasant to listen to" provide insights into sound qualities, they do not accurately reflect the meaning of "inaudible." "Clear and loud" suggests sounds that can easily be heard, while "completely silent" implies no sound at all, and "unpleasant to listen to" conveys a negative quality of a sound that is audible but disagreeable. In contrast, the correct choice emphasizes the specific aspect of volume related to the ability to hear a sound, making it the most accurate definition of "inaudible."