Grandiloquence 

a lofty, extravagantly colorful, pompous, or bombastic style, manner, or quality especially in languag

Her big features matched its grandiloquence and spoke volumes from a distance

Grandiloquence by anonymous February 26, 2022

grandiloquent 

gran-DIL-uh-kwuhnt, adjective:
Lofty in style; pompous; bombastic. Full of fine words and fancy expressions - marked by the use of impressive-sounding but mostly meaningless words and phrases.

He became more than usually grandiloquent as if to make up for the years of silence with words of gold.

grandiloquent by JRob July 26, 2006

grandiloquent 

using big or important words in order to impress

the american psycho feigned intelligence by being grandiloquent

grandiloquent by bond.jane bond. August 29, 2003