unfasten

To separate the connected parts of.

To become loosened or separated.

To loose; unfix; unbind; untie; figuratively, to detach from any connecting link or agency; disconnect.

To come untied or unloosed.

To loose; to unfix; to unbind; to untie.

To loose; to unfix; to unbind; to untie; figuratively, to detach from any connecting link or agency; to disconnect.

To come untied or unloosed.

cause to become undone

become undone or untied