Many restaurants and other businesses were forced to close for an as yet undetermined period.

In October 2009, Nailpin announced that they would take a break for an undetermined period.

The young remain in the male's mouth cavity for an undetermined period after hatching.

Mark Calcavecchia tore up his right knee skiing two weeks ago and will be out for an undetermined period.

After an undetermined period of time, it was abandoned.

This would be for an undetermined period of time (news article, April 18).

This arrangement is set to continue for an undetermined period of time.

In 2012, the band announced a hiatus for an undetermined period of time.

She had been dead for an undetermined period when the police arrived.

With Francis out for an undetermined period, the situation is defused.