"Apparently, Williams has some unusual characteristics," the warden had told him.

The intent is to help determine whether unusual characteristics are killing children.

There are unusual characteristics to this bear market, however.

There are various hypotheses for the unusual characteristics of Venus' surface.

Its presence is the cause of the Castle's unusual spatial characteristics.

One of the novel's unusual characteristics is its interactive status.

His features, even in the dim light of the entry, showed unusual characteristics.

The show's most unusual characteristic is its frequent breaking of the fourth wall.

The route does not have any unusual characteristics causing current or anticipated safety problems.

The only even slightly unusual characteristic of the child was his weight.