It is likely to be an exceptional and unforeseeable event beyond the person's control.

This tends to make the expectation of success the norm for most children and failure as an exceptional event.

The easiest reform to institute would turn the use of unidentified sources into an exceptional event.

We are looking to develop systems that can report on exceptional events.

Scientists have been unable to answer many questions surrounding this exceptional seasonal event.

All 10 members of the board spoke publicly yesterday, itself an exceptional event.

Tickets are $9 to $30, higher for exceptional events.

I think we are faced with an exceptional historic event which has its symbolic and real consequences.

We know these are terrible, exceptional events in the life of every person affected.

One year after that exceptional event, new European measures have so far failed to materialise.