The antonyms for "punches up" would be words like "diminishes," "depresses," "reduces," or "undermines." These words suggest a decrease in energy, impact, or effectiveness. The opposite of "punching up" might involve scaling down a message, toning down a performance, or reducing the intensity of an action. It could also mean avoiding aggressive or confrontational approaches and seeking more passive or diplomatic solutions. In many cases, the antonym of "punches up" focuses on the need to be more compassionate, empathetic, or respectful towards others instead of trying to assert dominance or control.