pomposity
self-importance / pretentiousness / arrogance / grandiosity
Noun
This term describes a specific blend of arrogance and theatricality. It suggests a person who is not merely proud, but who actively performs their perceived importance through an exaggeratedly formal or solemn demeanor to impress others. In the context of language, it refers to a style that is unnecessarily ornate or complex. This type of writing or speech often obscures meaning in favor of appearing sophisticated, creating a barrier between the speaker and the audience.