After unbearably long seconds there was a tugging on one rope.

He'd waited, throughout an unbearably long day, for the phone call that would tell him his assignment was over.

He thought only that he had promised to come again tomorrow and that it was an unbearably long time to wait.

Weight loss is a slow process, often lasting six months or longer, an unbearably long time for an adolescent.

She pauses for an unbearably long time and looks as if she is about to cry.

The King looked at Isolla without expression for what seemed an unbearably long time.

The look held for a few minutes, an unbearably long time, before Ansset finally could not stand to see Riktors's hatred any longer.

For an unbearably long moment they stared at each other.

Its roar seemed right on top of her for an unbearably long time, a hovering weight.

This went on for an unbearably long time.