There could be other hidden factors, he said, even domestic discord.

You may wish to consider some hidden lurking factors.

"Maybe, way back in my mind, that's a hidden factor," Sheppard said of watching two younger men facing mortality.

Beneath the surface of the coming struggle lay hidden factors that needed settlement, before justice could be served.

We have no hidden factors in evaluating proposals.

"There's some hidden factors here I might not understand."

There was some hidden factor more startling than that-but what it was he had no idea.

Thus had The Shadow indicated two hidden factors in the game.

Although moving a piano may seem like a simple procedure, hidden factors compound the task.

There was always a trap in such duty, some hidden factor to waylay the over-hasty.