Which term describes a flaw in the character of a hero of a tragedy in ancient Greece?

The term that describes a flaw in the character of a hero in a Greek tragedy is "hamartia." This tragic flaw often leads to the hero's downfall and is a central element in the narrative, highlighting the complexities of human nature and the consequences of personal choices. Hamartia serves to evoke pity and fear in the audience, fulfilling the emotional catharsis characteristic of tragic works.