a.

1. 难以形容的；不可名状的
   The scene was one of indescribable beauty.

   那真是无法描绘的绮丽风光。

   She has burns over 90% of her body. That kind of pain is indescribable.

   她全身有超过90%被烧伤，那种痛苦是难以形容的。

adj.