《isolation》的詞曲作者是蔡徐坤，歌曲分為中英文兩個版本，詞曲都是蔡徐坤本人所創。以下是歌曲的中英文詞語：
中文版：
《Isolation》
I'm walking through the crowd
人群中我獨自穿行
Tryna steady my mind
試圖讓心情平穩
Yeah, it's a pity they won't
是的 可惜他們總是無視
Look up and there I am on my own
抬起頭看我還是一個人
Look down and now they look away
低頭看現在他們卻離開了
You see I ain't scared to be alone
你看 我並不怕孤獨
Now I'm on my own again
現在我又一個人
You see isolation is a feeling not a mood
你看 我們知道這是一種感覺不是心情
A feeling I won't get over, oh oh oh oh
我永遠都無法克服的感覺 喔 喔 喔 喔
I'm just tryna make sense of the madness inside me
我只是試圖讓內心狂亂變得有點理智
I'm on my own again, yeah yeah yeah yeah
我又一個人 耶耶耶耶
Oh oh oh oh, oh oh oh oh, yeah yeah yeah yeah
喔 喔 喔 喔 喔 喔 喔，耶耶耶耶
I'm on my own again, yeah yeah yeah yeah
我又一個人，耶耶耶耶
Oh oh oh oh, oh oh oh oh, I'm just tryna make sense of it all (oh)
喔，喔，喔，喔，喔，喔，喔，我只是試圖讓一切變得有點理智（喔）
英文版：
《Isolation》 (Extended Mix) (feat. Joyner Lucas) - written by: Jin, RKCH1LSNSNKDZ / (Verse1): It's just a pity that they never could see (Ohh) The genuine soul I’m hiding, (Chorus): But now I’m feeling, like everyone around me is out to play. Now I’m all alone again, so maybe it’s the same. (Yeah) (Verse2): I ain’t scared of being lonely. It’s just a feeling that won’t go away. It’s like a sickness that won’t leave me alone. (Ohh) (Chorus): Now I’m feeling like I’m in the middle of a crowd. But I’m still feeling like I’m all alone. And now they all look away when they see my face. (Ohh) (Outro): But I ain’t giving up, no, no, no. This feeling won’t go away. So here we are again. Ohh… Ohh… Ohh… Ohh… (Outro) - Written by: Jin / Joyner Lucas / Produced by: Jin for the KINN Project. 以上就是《Isolation》的詞語，這首歌的詞語非常有意境，能夠讓人感受到歌曲的內涵和情感。