動詞 deafen:

1. be unbearably loud
   同義詞：deafen
2. make or render deaf
   同義詞：deafen, deaf
3. make soundproof
   同義詞：deafen

形容詞 deafening:

1. loud enough to cause (temporary) hearing loss
   同義詞：earsplitting, roaring, thunderous, thundery

1. Loudspeakers belched out deafening pop music.
   擴音器里播放出震耳欲聾的流行音樂。
2. He sat down amid deafening applause.
   他在震耳欲聾的掌聲中就坐。

deaf.en.ing

adj.（形容詞）
Extremely loud.
極喧鬧的：極度大聲的

<習慣用語>deafening silence
A silence or lack of response that reveals something significant, such as disapproval or a lack of enthusiasm.
震耳欲聾的安靜：透露某種重要的事的安靜或不回答，例如不同意或缺乏熱誠
【引伸】
deaf.eningly
adv.（副詞）