What you did to Deidre cannot be undone, Gabriel replied.
"It can be undone," he added, an edge in his voice.
This task was principally executed by Juan Vazquez de Coronado (or Vasquez de Coronada), an able and humane governor appointed in 1562, whose civilizing work was undone by the almost uninterrupted maladministration of his fifty-eight successors.
The following year saw the work of Sulla undone; the tribunate was restored, and the administration of justice was no longer left exclusively to the senate, but was to be shared by it with the wealthier portion of the middle class, the equites and the tribuni aerarii.
How would you define undone? Add your definition here.