Grandiloquent

1. adjective

   puffed up with vanity; ; ; ; - Newsweek

   “a grandiloquent and boastful manner”

   Similar: overblown, pompous, pontifical, portentous

2. adjective

   lofty in style

   “he engages in so much tall talk, one never really realizes what he is saying”

   Similar: magniloquent, tall