The antonyms for "out play" may vary depending on the context in which the term is used. Out play generally means to outsmart, outwit, or outdo someone. Therefore, its antonyms could be underperform, fail, lose, or fall short. In the context of sports, the antonyms for out play could include underperform, lose, or give up. In an academic setting, the antonyms could include fail or struggle. Overall, the antonyms for out play represent the opposite of success, achievement or domination. It is essential to understand the opposite of a term to fully appreciate its meaning and its implications in different situations.