mortal fear
mortal dread
mortal terror

It could only be an ordinary person in mortal fear.

Most players live in mortal fear of putting an injury to the test.

Not a wild, mortal fear, but something cold like a hook in my side.

And by the way, they are in mortal fear of you.

They had been driven by more than mortal fear or hatred.

Pain and mortal fear gave her what muscular strength could not.

But Democrats live in mortal fear that people will understand.

He lived in mortal fear that someone would find out that be wrote by hand!

Are you in mortal fear of this creature, like all the rest?

She has a mortal fear of heights, and even feels nervous standing on a chair.