Main entry: overblown, pompous, pontifical, portentous, grandiloquent
Definition: puffed up with vanity
Usage: a grandiloquent and boastful manner; overblown oratory; a pompous speech; pseudo-scientific gobbledygook and pontifical hooey- Newsweek
Main entry: tall, grandiloquent, magniloquent
Definition: lofty in style
Usage: he engages in so much tall talk, one never really realizes what he is saying