I am looking for a word or short phrase that best describes a scenario in which an author seems to have copiously placed uncommon or higher educated vocabulary in a lower reading level book. Meaning that the book seems to be for a fourth grade reading level and then every few paragraphs an English Doctorate level word appears, possibly to impress readers.
Learn English – English word that means the use of out of place uncommon words
single-word-requests
Best Answer
[As requested, posting this as an answer instead of a comment]
There's lexiphanic, which is using pretentious wording or language, but it doesn't have the sense of intermittence you wanted.
(I found the word by plugging "using long words" into a reverse dictionary. The first two results, sesquipedalian and sesquipedality, are also good, but they don't necessarily have a negative connotation like lexiphanic.)