Hubris

What Does Hubris Mean?
The characteristic of excessive confidence or arrogance, which leads a person to believe that he or she may do no wrong. The overwhelming pride caused by hubris is often considered a flaw in character.

Investopedia explains Hubris
Hubris may be developed after a person endures a period of success. Corporate executives and traders overcome by hubris may become a liability for their firms. A manager might start making business decisions without fully thinking through the consequences, or a trader may begin taking on excessive risk. In many cases, people overcome by hubris will bring about their own downfall.