magniloquent

Adjective

magniloquent (comparative more magniloquent, superlative most magniloquent)

1. Using pompous speech; speaking with deliberately long or esoteric words.
   • There is no doubt that the ordinary reader would enjoy, and he certainly would profit much by, a revival of the classic work—if only he did not fall asleep over its magniloquent but perissological otiosity.1908, Charles Francis Horne, The Technique of the Novel, page 126
   • The sermonizer, said Dwight [Macdonald], was guilty of "puerile, stupid twaddle" and seemed to have "a remarkable power of hypnotizing himself with magniloquent platitudes."2012, David Skinner, The Story of Ain't: America, Its Language, and the Most Controversial Dictionary Ever Published, HarperCollins, page 40

   Synonyms:

   bombastic, tumid, grandiloquent, pompous, fustian, lexiphanic