Answer:
When Creon sees that flattering words will not move Oedipus, he has no compunction in holding Antigone and Ismene hostage and threatening Theseus with war.
Step-by-step explanation:
Creon's tragic flaw is hubris or excessive pride. Sophocles highlights Creon's hubris throughout the play in his refusal to compromise or to believe himself wrong In "Antigone" the tragic hero is Creon. He suffers because of his flaw: pride. He cannot imagine that anyone else can be correct. He is too inflexible and narrow in outlook to heed criticism or admit a mistake.