unscheduled

The next evening, Singh was surprised when his train made an unscheduled stop at a small railway station near Bhopal.

The book was to be released in September but is now officially unscheduled and has been removed from the Tyndale website.

It was more people than I'd ever stood among, as part of an unscheduled, unsanctioned, illegal event.

At ten-thirty, a large but unscheduled military parade started winding through the streets of Old Havana.

But most of Susan's knowledge was gained from such unscheduled courses.

Besides, your crystal gymnastics, Starrett, were as unscheduled as her arrival.

One doesn't look for a "chronic's" doing anything so unscheduled and foreign to routine; but Paw spoiled all precedent.