"Holds up one end" signifies the completion or success of a task with the contribution of a person, team, or community. The antonyms of "holds up one end" can range from negative to neutral connotations, such as failing, falling apart, disintegrating, breaking down, collapsing, and crumbling. On the other hand, the positive antonyms of "holds up one end" may include thriving, flourishing, excelling, succeeding, soaring, and surpassing. These opposite expressions emphasize the importance of teamwork, dedication, and competence in achieving a goal or objective. Regardless of the antonym used, it is essential to recognize the effort and collaboration of all stakeholders involved in a mutual achievement.