If a sound is inaudible, it is too quiet to hear. Your ears get nothing you can use — or so little that you cannot make the words or the noise out. A whisper across a playground can be inaudible; a voice behind a thick door can be inaudible; some high sounds are inaudible to people but not to dogs.

If a sound is inaudible如果一個聲音是inaudible，it is too quiet to hear代表它太小聲、聽不到。Your ears get nothing you can use你的耳朵接收不到任何有用的訊息，or so little that you cannot make the words or the noise out或少到你聽不出字句或聲音的內容。A whisper across a playground can be inaudible操場另一頭的耳語可能是inaudible的；a voice behind a thick door can be inaudible厚門後面的聲音可能是inaudible的；some high sounds are inaudible to people but not to dogs有些高頻聲音對人來說是inaudible的，但狗聽得到。

We also stretch it a little, and that is how it is really used: “almost inaudible” means you could barely catch it, not that it was truly zero.

We also stretch it a little我們也會把它用得寬鬆一點，and that is how it is really used而這其實才是它真正的用法："almost inaudible" means「almost inaudible」的意思是 you could barely catch it你幾乎聽不清楚，not that it was truly zero而不是完全零聲音。

The word is about hearing, not about understanding. If you hear every syllable but still cannot follow the idea, that is a different problem.

The word is about hearing這個詞說的是聽不聽得到，not about understanding不是懂不懂。If you hear every syllable如果你每個音節都聽到了 but still cannot follow the idea但還是聽不懂意思，that is a different problem那是另一個問題。

The opposite is audible: loud enough to hear. Inaudible is ordinary in writing and in careful speech. Though actually, when we talk we often skip it and just say “I can’t hear you” or “speak up.” It is not a rude word; it is a fact about sound.

The opposite is audible相反詞是audible：loud enough to hear夠大聲、聽得到。Inaudible is ordinary in writing and in careful speechInaudible在寫作和講究一點的口語裡很常見。Though actually不過其實 when we talk我們平常講話 we often skip it常常不用它 and just say "I can't hear you" or "speak up."直接說「I can't hear you」或「speak up」。It is not a rude word它不是一個不禮貌的詞；it is a fact about sound它只是在講聲音的一個事實。