sesquipedalian

/ˌsɛskwɪpɪˈdeɪlɪən/

Misollar

Denying the sesquipedalian is but mere floccinaucinihilipilification.
The word 'sesquipedalian' is an example of the very thing it means.

ot noun

A long word.
A person who uses long words.

sifat adjective

Pertaining to or given to the use of overly long words. Our dinner guest was so sesquipedalian that no one could understand what he said.
(of a word or words) Long; polysyllabic.

Manbalar: Wiktionary (Free Dictionary API orqali), Datamuse, Tatoeba (CC BY 2.0 FR), MyMemory.