guesswork

It had only been selected by guesswork among a number on Roden's bunch.

In nearly all of America's accidents, guesswork is the real cause.

The further in they went the greater the guesswork of the going.

Perhaps I might hazard a guess, but it's no use talking of guesswork.

It was guesswork to trace his footsteps, but the elder youth made the effort.

Tell him he must measure out the water without any guesswork.

This, he recognized, was guesswork, but still it might be the truth.

Oh, a man lets out a lot of guesswork when he is nervous about his own business.

But it was no time for weeping; we had other guesswork on hand, and we buckled to our work with a will.

The latter are indeed so solid that there is no necessity for guesswork.