IPA: /bɒmˈbæstɪkli/
KK: /bɑmˈbæstɪkli/
In a way that is overly showy or exaggerated, often to impress others.
He spoke bombastically at the meeting, trying to impress everyone with his grand ideas.
Bombastically → It is formed from "bombast" (from Middle French *bombace*, meaning cotton or padding, which evolved to mean inflated or pompous language) and the suffix "-ically" (meaning in a manner relating to). The word "bombastically" means in a manner that is pompous or inflated in style, often used to describe grandiose speech or writing.
Think of 'bombast' as referring to inflated language, and remember that 'bombastically' means speaking in a pompous or grand manner.