self-aggrandizement; self-glorification; self-inflation
Refers to the act of making oneself seem larger, more important, or more powerful than reality, often in a psychological or social context. The literal image is of something growing by feeding on itself.
People around him are fed up with his self-aggrandizement.
Self-glorification on social media sometimes ruins relationships.
自己顕示 means showing off or drawing attention to oneself, while 自己肥大 focuses on inflating one's own importance or ego.
自己陶酔 is narcissism or self-admiration, whereas 自己肥大 is the process of making oneself seem bigger or more significant.
Compound of 自己 (self) and 肥大 (enlargement, swelling). The term is a straightforward Sino-Japanese construction, likely coined in modern Japanese to describe psychological or social self-inflation.