The phrase "held up end" refers to something that is supported or propped up vertically. Its antonyms can include "toppled," "collapsed," "flattened," "dropped," "tumbled," "sunk," "lowered," "descended," "depressed," and "fallen." Each of these words carries a distinct meaning, but collectively they all describe something that is no longer upright or stable in its position. When something that was once held up is now lying down, fallen apart, or tilting to one side, it becomes evident that it is no longer supported or sustained, hence the need for new antonyms to describe the change that has occurred.