The antonyms of the phrase "turns upside down" could be "stabilizes," "fixes," "settles," "reorients," or "calms." These words indicate a state of balance, order, and stability. When something is stable, it means that it is secure and unlikely to change rapidly or unexpectedly. When something is fixed, it means that it has been adjusted or repaired to prevent further disturbances. When something is settled, it means that it has reached a state of peace or resolution. When something is reoriented, it means that it has been redirected to follow a new direction or goal. Lastly, when something is calm, it indicates a state of tranquility and peace.