Sesquipedalianist

A person who uses long, unusual, sometimes obscure words in speech or writing.
You can be quite the sesquipedalianist.
by Aneles March 13, 2010
mugGet the Sesquipedalianistmug.

sesquipedalianist

A person who uses unnecessarily large or obscure words.
Example: Will Stocksdale is a sesquipedalianist
by ryangrace101 July 25, 2016
mugGet the sesquipedalianistmug.