uncertain

If the certainty of the wisdom of uncertainty is itself uncertain, the force of the definition crumbles by logical standards.

In war, he wrote, “everything is uncertain … all military action is intertwined with psychological forces and effects.”

“The jailer had a high-school-age daughter and was uncertain how to help her get in college,” writes Ferris.

Meanwhile, ISIS is on the march, and President Obama strikes an uncertain pose.

Even “destroyed” becomes an uncertain term when applied to these sort of digital files.

Distance, the uncertain light, and imagination, magnified it to a high wall; high as the wall of China.

Uric acid is decreased before an attack of gout and increased afterward, but its etiologic relation is still uncertain.

An estate upon condition is one which depends upon the happening or not happening of some uncertain event.

It is therefore uncertain from these statements which furnace consumes the greater quantity of air.

Again Arabella inclined her head, and looked uneasily round as if uncertain whether to call for assistance.