grandiloquent

(s) lofty in style
- he engages in so much tall talk, one never really realizes what he is saying
magniloquent, tall,
(s) puffed up with vanity
- a grandiloquent and boastful manner
- overblown oratory
- a pompous speech
- "pseudo-scientific gobbledygook and pontifical hooey"- Newsweek
overblown, pompous, pontifical, portentous,

magniloquent tall overblown pompous pontifical portentous

grandiloquently