Ironically, Antigone's tragic flaw is also her greatest strength: her stubborn will to do the right thing no matter what. She buries her brother despite Creon's laws against doing just that because of her love of family and her desire to uphold the will of the gods. This stubbornness allows her to bypass any fear or hesitancy. It allows her to stand firm. However, some critics have argued Antigone takes her civil disobedience to foolhardy degrees.
It all comes down to the second burial, which is where Antigone gets caught by the authorities. Antigone buries her brother once, then returns to put more dust over the body when the dirt is purposefully disturbed to lure her out. Some critics claim that once Antigone had already performed the rite, her brother's soul was finally at peace: that no outside party could prevent it and that she was needlessly risking her life by trying to recover him. Others argue that Antigone is not being foolish but is simply showing how pious she is by trying to maintain a perfect burial for her brother. Whatever the case, whether one sees Antigone's stubbornness as foolish or pious, it is the one quality that brings about her eventual downfall.