Meanings of prove fallacious in English

The day seemed marked with evil omens, which were fortunately destined to prove fallacious.

The reasoning to which they trusted proved fallacious, and their hopes were quenched.

The king did not return, but their other hope proved fallacious.

Every signal of his coming proved fallacious, and our hopes were at length dismissed.

These hopes have proved fallacious and hostilities have been renewed throughout the whole of the Territory.

Both these calculations proved fallacious, and still less was it foreseen that the reservoir would revolt.

His malady fluctuated for several days, and hopes were entertained of his recovery, but they proved fallacious.

This he proved by a statement of figures, and although Sheridan attempted to controvert his statements, they could not be proved fallacious.

The stormy appearance of the sky, though it proved fallacious, was hailed by my hosts as predicting a fall, which was much wanted.

The German conviction that the British colonies would fall away and the British Empire disintegrate upon the outbreak of a great war had proved fallacious.