This is the 3531st most frequent Korean word.
무너진
"Collapsed" or "crumbled."
Here, '무너진' is used to describe a wall that has collapsed, metaphorically relating to collapsed or shattered aspirations.
그의 꿈은 무너진 벽처럼 부서졌다.
His dreams shattered like a crumbled wall.
In this sentence, '무너진' characterizes the state of the bridge as having fallen down or been destroyed.
무너진 다리가 강 위에 위험하게 걸쳐 있었다.
The collapsed bridge was precariously resting above the river.
Here, '무너진' is metaphorically describing the state of trust as having been damaged or destroyed.