Out-dare means to challenge or defy someone to do something, often with the intention of proving oneself to be braver or more courageous. Some antonyms for out-dare could include phrases like "back down," "yield," or "surrender." These words suggest a willingness to avoid conflict or confrontation, rather than actively engaging in it. Other antonyms might include "restrain," "concede," or "submit," all of which imply a sense of humility or deference to someone else's authority. Ultimately, the antonyms for out-dare depend on context and the specific situation, as well as the desired outcome or goal.