The phrase "beg the question" has a few antonyms, including "answer the question," "provide evidence," and "counter the argument." When someone begs the question, they assume that their argument is true without providing any evidence to support it. Answering the question requires addressing the issue directly and providing facts or arguments to support one's position. Providing evidence is the act of presenting facts, figures, or research that supports a particular claim. Lastly, countering the argument is the act of presenting an opposing view and evidence to refute a particular claim. Using these antonyms can help to avoid logical fallacies and strengthen one's arguments.