无法描述的心情译成英文是什么

an indescribable feeling
例如：An indescribable feeling washed over me.
feelings beyond description/expression
feelings beyond words 也可以，但很少用
如果是句子的话，可以用：
Words don't do it justice.
My (own) words fail me.

加分啊！

No word can explain my feeling

indescribable mood

can't express my feelings in words