He was the main proponent of the theory that there existed a vast undiscovered continent in the South Pacific, Terra Australis Incognita.

In the world of consumer research, the prospect of an untapped opinion market is as alluring as an undiscovered continent would be to an ambitious cartographer.

I felt the thrill of a new Columbus or a Magellan, about to sail for undiscovered continents.

Often, this intensely private place is referred to as the "undiscovered continent" and the "landscape of the spirit" and embellished with nature imagery.

Accordingly, Java Major, or Jave la Grande, was shown as a promontory of the undiscovered antarctic continent of Terra Australis.

The physical dimension of their bodies required exploration as though it were an undiscovered continent, vast and mysterious, stretching out before them as they stood upon the slender ribbon of the beach.

Two factors conspired, however, against anyone going to look for this mysterious undiscovered continent.

He treated my every word like a report from an undiscovered continent.

For many American readers, African literature remains a largely undiscovered continent.

He's an undiscovered continent.