The phrase "plays for a fool" refers to someone who is deceived or tricked easily. Some antonyms for this phrase include "wise," "astute," "intelligent," "canny," and "perceptive." These words denote individuals who are discerning and capable of detecting deception or manipulation. Alternatively, the opposite of playing for a fool is "outwitting," "outmaneuvering," or "outsmarting" someone, which means using one's intelligence and resourcefulness to gain an advantage over others. Therefore, if one does not want to be someone who is played for a fool, it is essential to cultivate a sharp mind and a heightened sense of awareness to avoid being fooled.