grandiloquent
1. [ adjective ] lofty in style
Synonyms: tall magniloquent
Examples:

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

Related terms: rhetorical
2. [ adjective ] puffed up with vanity
Synonyms: pompous portentous pontifical overblown
Examples:

"a grandiloquent and boastful manner" "overblown oratory" "a pompous speech" "pseudo-scientific gobbledygook and pontifical hooey"- Newsweek

Related terms: pretentious
Similar spelling:   grandiloquently
  grandiloquence
  granadillo
  ground_sloth
  ground_cloth
  grandparent
  grand_tour
  ground_loop
  grandiosely
  grand_piano