sesquipedalianist

rare

(rare) A person who tends to use and enjoy long (sesquipedalian) words.

Japanese Meaning

長い単語や難解な単語を好んで使う人

At the literary salon, the resident sesquipedalianist amused and exasperated his listeners with delightfully ornate, multisyllabic vocabulary.

文芸サロンでは、長い言葉を好んで使う常連が、華やかで多音節の語彙を用いて聴衆を楽しませ、苛立たせた。

Sense（1）

(rare) A person who tends to use and enjoy long (sesquipedalian) words.

sesquipedalianists

（ plural ）