The phrase "ate humble pie" means to admit to one's mistakes and apologize for them. This can be a difficult thing for people to do, but it is often necessary in order to repair relationships and move forward. On the opposite end of the spectrum are people who are stubborn, unwilling to admit fault or fault-free. These individuals may refuse to eat humble pie, instead denying wrongdoing and placing blame on others. They may also lack the humility to apologize and seek forgiveness. Antonyms for "ate humble pie" could include: refused to apologize, remained stubborn, denied accountability, and displayed arrogance.