Pompous
Exaggerated
い adjective
You look up to someone... twice. That's too many times that you're looking up to someone. They must be pretty amazing for that to happen. Really, though, you're being fooled. This person is pompous and exaggerated. So you think they're cool, but really they're pretending to be more than they are.
The reading is the same as the one you learned with the kanji, x2 with a しい added on for good measure.
仰々しい言葉遣いをする人は嫌いです。
I hate people who use pompous wording.