That said, aluminum is still an extremely stiff and light metal.

This produced an extremely stiff boot suitable only for the most powerful racers.

I fiddled with my gun and discovered that for some reason the trigger pull had become extremely stiff.

Rigor mortis, which begins only after death, makes the body extremely stiff.

It is illegal and there are extremely stiff penalties.

"The formula for yield maintenance is extremely stiff," he said.

The force is contained in a close loop and the machine is extremely stiff.

Tightsuit fabric was extremely stiff and difficult to handle.

In the morning she was tired and extremely stiff herself.

This made it both very light and extremely stiff, and correspondingly accurate in sound.