The antonyms for the word "up ends" are numerous and diverse, ranging from verbs that express the opposite direction of movement, such as "down," "lower," or "descend," to words that refer to the state or condition of being stable, such as "settled," "grounded," or "fixed." Other antonyms that could be associated with "up ends" are those that indicate a lack of motion or activity, such as "stationary," "motionless," or "still," or those that imply a change of position, such as "reposition," "shift," or "move." Ultimately, the best antonym for "up ends" may depend on the specific context and intended meaning of the term.