The phrase "played fool" typically means acting foolishly or behaving in a silly manner. Some antonyms for this phrase could include words like "wise", "intelligent", "thoughtful", or "sensible". Another way to approach the meaning of "played fool" could be to consider synonyms for each word individually. For "played", antonyms might include "worked", "toiled", "labored", or "struggled". For "fool", antonyms could include "genius", "intellectual", "brain", or "smarty-pants". Ultimately, the antonyms for "played fool" will depend on the intended context and tone of the speaker or writer.