Soundless means making no sound at all. It is an adjective, and it is a literary word — you meet it in novels, poems and careful descriptive writing far more than in conversation. In speech people say 'silent' or 'it made no noise'.

Soundlesssoundless means making no sound at all意思是完全沒有聲音。 It is an adjective這是形容詞 and it is a literary word而且是文學性的字 you meet it in novels, poems and careful descriptive writing你會在小說、詩，還有講究的描寫文字裡遇到它 far more than in conversation比在對話裡常見得多。 In speech people say 'silent' or 'it made no noise'口語裡大家會說silent，或說『它沒發出聲音』。

So when a writer chooses 'soundless', they usually want the reader to feel the absence, not just be told about it: a soundless flash of lightning far away, a soundless film, a soundless laugh where the shoulders shake but nothing comes out. That last use is worth noticing — the thing is happening, fully and visibly, but the sound has been taken away from it. That is where 'soundless' does work 'quiet' cannot do.

So when a writer chooses 'soundless,'所以當作家選擇用'soundless' they usually want the reader to feel the absence他們通常是想讓讀者感覺到那個『沒有』 not just be told about it而不只是被告知這件事 a soundless flash of lightning far away像是遠方一道無聲的閃電 a soundless film一部無聲的電影 a soundless laugh where the shoulders shake but nothing comes out或是肩膀在抖卻沒發出聲音的無聲的笑。 That last use is worth noticing最後那個用法值得注意 the thing is happening, fully and visibly那件事完整地、看得見地正在發生 but the sound has been taken away from it但聲音卻被從裡面拿走了。 That is where 'soundless' does work 'quiet' cannot do這正是'soundless'能做到而'quiet'做不到的事。

It sits before a noun most naturally ('a soundless room'), though it can follow a linking verb ('the house was soundless') and then it sounds distinctly bookish.

It sits before a noun most naturally它最自然的位置是放在名詞前面 ('a soundless room')（像'a soundless room'） though it can follow a linking verb雖然它也可以接在連綴動詞後面 ('the house was soundless')（像'the house was soundless'） and then it sounds distinctly bookish這時候聽起來就明顯很書面。