hubris
/ˈhuːbrɪs/Definitions
1. noun
excessive pride or self-confidence leading to a fall; overestimation of one’s own abilities or achievements
“The athlete’s hubris after winning the championship led to a scandal involving a cheating scandal.”
2. noun
a quality of being proud and confident to the point of arrogance
3. noun
pride or arrogance that is considered to be a fatal flaw