splintered

Splintered describes something that has broken into sharp, thin fragments, like wood or bone.

The past tense of splinter, it often appears in descriptions of violent or sudden breakage: The door splintered under the force of the battering ram.

Figuratively, splintered characterizes groups or unified things that have fractured into smaller, often conflicting parts: The coalition splintered over trade policy.

A splintered movement or organization has lost its cohesion.