Collapsed is a word that describes a sudden or complete breakdown or failure of something. There are many synonyms for the word collapsed, each with its own unique connotations. One common synonym is "crumbled," which suggests a slow, gradual decay or disintegration. "Collapsed" can also be replaced with "fell apart," which implies a sudden, catastrophic failure of a system or structure. Other synonyms include "crashed," "foundered," "disintegrated," and "imploded." These words all suggest that something that once stood strong and sturdy has lost its foundation and fallen apart in some way. Whether you're describing a physical structure or an abstract concept, there are many ways to express the idea of something collapsing.