unheard-of

“Imagine that the tools of chemistry could be used to create entirely new materials with unheard-of properties,” Heiner Linke, chair of the Nobel Committee for Chemistry, said Wednesday.

His thesis at the Navy Academy was in the unheard-of topic of liquid-fuel engines.

The New York Yankees emerged as the franchise most willing to pay players previously unheard-of salaries, inadvertently helping the efforts of Miller and Moss.

Fortunately, large-scale firestorms are almost unheard-of in the area, in part because the region’s narrow canyons and strong prevailing winds act to direct gusts — and therefore fires — in specific directions.

It’s unheard-of, and it’s unheard-of in a show in this way.