The word "outjockey" typically means to outdo or outsmart someone in a competitive situation. Antonyms for outjockey could include words like "lose", "fail", "underperform", "struggle", or "suffer defeat". These words indicate a lack of success or inability to perform well in a given situation. Other possible antonyms for outjockey might include "fair play", "mutual respect", "collaboration", "teamwork", or "cooperation". These words reflect a more cooperative, less competitive approach to problem-solving, which may be more appropriate in certain contexts where winning or losing is not the primary goal.