The word "up rise" is commonly used to describe a situation where something is moving upwards, becoming higher or stronger, or experiencing a revolution or rebellion. Some possible antonyms for "up rise" might include "decline," "fall," "decrease," "recede," "sink," "weaken," "subside," or "disintegrate." These words describe situations where something is moving downwards, becoming weaker or less influential, or experiencing a loss of power or authority. While "up rise" is often associated with positive change or progress, these antonyms suggest more negative or stagnating situations where things may be going in the wrong direction.