Describing a book with big vocabularies? [closed]
The vocabulary of the book is too difficult for me.
Perhaps bloviating. Oxford Dictionaries Online defines bloviate as
Talk at length, especially in an inflated or empty way.
Or maybe grandiloquent
Pompous or extravagant in language, style, or manner, especially in a way that is intended to impress
Oxford
Sesquipedelian.
This is a humorous and ironic word that literally derives from the Latin for "a foot and a half long" and refers to the use of long words, but could also apply to other instances of hot air.