Final answer:
The irony in Dally's heroic action is that it contrasts with his tough, criminal reputation, showing the complexity of his character in 'The Outsiders'.
Step-by-step explanation:
The irony of Dallas 'Dally' Winston's heroic actions in S.E. Hinton's The Outsiders lies in the contrast between his delinquent reputation and his courageous deeds. Throughout the novel, Dally is portrayed as a tough, hardened criminal who cares little for the law or societal norms. His heroism is ironic because it contradicts the expectations one might have of such a character. When he runs into a burning church to save the lives of children, his actions are both admirable and surprising, given his previously established traits. Being treated as a hero challenges the societal perception of Dally as just a hoodlum, highlighting the complexity of his character as well as the overarching theme that people are more than their labels.