“As a Royal Navy lieutenant, he was awarded the Distinguished Service Cross for navigating unchartered waters off the Burmese coast.”

“It is the most expensive route, and it takes you through territories that are unchartered.”

“Or will it slip inexorably into the unchartered waters of default and economic catastrophe?”

“As Jesus approached death he suffered agonies of mind and spirit that plunged him into uncharted depths.”

“This still doesn't guarantee a clean sweep though, especially if I start poking around those uncharted corners of the web.”

“The columnist coshed me on the back of the head and, while I was out, dumped me in the uncharted territory of his foreign policy mistakes.”