pompous
🇺🇸
/ˈpɑːmpəs/
🇬🇧
/ˈpɒmpəs/
arrogant and self-important, often by using grand language
The pompous professor droned on and on about his many accomplishments.
そのけなげな教授は彼の多くの業績について何度も語り続けた。