Hamartia is the Aristotelian term for a literary character's "fatal flaw" which is really more of a mistake than a personal flaw. For example, in the play Oedipus the King, Oedipus' flaw is a lack of knowledge about his true identity, which in the end leads him to murder his father and marry his mother.
Hamartia is a fatal flaw This is the leading to the downfall of a tragic hero.
The Greek word "hamartia" means to miss the mark or to make an error. It is often used in literature to describe a tragic flaw in a character that leads to their downfall.