Unenglishable 

Unable to be described using the English language.

I had a vision and was unable to describe the wonderful and amazing things that I saw. The entire experience was unenglishable.

Unenglishable by JesterLester December 14, 2021

Unenglishable 

A word that is spelt with English letters, it written to look like a word from the English language but is in no way a real English word.

The names of fantasy places in books are unenglishable.

Unenglishable by Pheebs Sawnders September 26, 2022