Definition
A belief that one is more important or powerful than is actually the case.
自视高大
He began to exhibit delusions of grandeur, believing that he should be in charge of the company.
他开始表现出妄自尊大的倾向，认为自己应该掌管公司。
She has delusions of grandeur and thinks she is destined to be an international superstar.
她有妄自尊大的倾向，认为自己注定要成为国际巨星。
The new employee has a tendency toward delusions of grandeur, often stating he is the most talented person on the team.
这位新员工有妄自尊大的倾向，经常声称自己是团队中最有才华的人。