The problem, in fact, has physical and race elements that make it almost insolvable.

To the men who secured his nomination and election he was an insolvable mystery.

Manifestly, if the first of these problems is insolvable, the second is insolvable also.

She may be sitting there still, solving at the insolvable.

The sheriff of neither county could afford to bother his head long over an insolvable mystery.

Without it, life and death are insolvable mysteries.

Wherever he turned, he found the same insolvable dilemma; either a fatal illusion, or death without it.

The problem of dealing with the criminal class seems insolvable, and it undoubtedly is with present methods.

You believe yourself mired in insolvable dilemmas.

The human heart is an insolvable enigma.

And always one persistent question remained insolvable.

Nature will not agree to be insolvable.

There are certain problems as yet insolvable.

He thought little of morals, or religion, but was enamored with physical life and its insolvable problems.

One poor fellow threw in his empty purse, and another a bundle of counterfeit or insolvable banknotes.

The problem seemed insolvable; but Trueman Harwell had not played the part of a machine so long without result.