くずれる
to collapse; to crumble
Those books look as if they're going to topple over any minute.
・crumble
・die
・demolish
・level
to get out of shape;to lose one's shape;to become disorganized;to become untidy
to break down;to be thrown into disarray
to crash (stock market);to slump;to decline
to break money into small change
to turn bad (e.g. weather);to change for the worse;to deteriorate