Nigel occupied the chair at the opposite end of the table, as heir presumptive, with Conall as an unofficial observer at his right.

He promised to send some of his best detectives to the reception, to act as unofficial observers and to provide additional help in the event of an emergency.

The US refused to send official delegates to League committees, instead sending unofficial "observers."

As an unofficial observer, I wanted to be as unobtrusive as possible.

Nearly every delegate and unofficial observer interviewed said it would.

He is due to give a speech to the General Assembly and Bruce Wayne uses his high-level contacts in order to get in as an unofficial observer.

Rome refused to take any part in these proceedings, except by unofficial observers.

It banned unofficial observers from attending.

At the Second Vatican Council, Baumann took part as an unofficial observer.

Wondered if I would like to be an unofficial observer.