zì​dà​kuáng

megalomania

自大狂 zì​dà​kuáng
megalomania noun
a psychological condition or personality trait characterized by delusions of grandeur and extreme self-importance

His arrogant manner makes him a total egomaniac.

Frequency

Movie subtitles
1.91 per million appears in 1% of films
Written text
0.116 per million

Sources

Definitions
CC-CEDICT