Adjective : an uncertain smile. ,a manuscript of uncertain origin. ,an abstruse novel with uncertain themes. ,a person of uncertain opinions. ,Her loyalties are uncertain.    From Dictionary.com. 

We are not born American, we become American, and this creates a sort of uncertainness, a sort of fragility.    From Wordnik.com.  [America in Foreign Eyes] Reference

"Moments of uncertainness and mistrust between ourselves have been put behind us," said President dos Santos, who has been in power since 1979.    From Wordnik.com.  [ANC Daily News Briefing] Reference

As he stood there in anxious uncertainness he heard a low voice among the bushes.    From Wordnik.com.  [The Wouldbegoods] Reference

Mostly I remember the support and attention I got from family and friends, and the uncertainness of what the diagnosis meant.    From Wordnik.com.  [Diabetes News from dLife.com] Reference

With three teenage children, maybe it's easy for him to recall that feeling of expectation mixed with uncertainness that every youngster feels about life.    From Wordnik.com. Reference

All forward-looking statements made on this call are subject to risks, uncertainness and assumptions that could cause actual results or events to differ materially from those contained in the forward-looking statements.    From Wordnik.com.  [Internet Sector and Stocks Analysis from Seeking Alpha] Reference

The main limitation of this study is that the cohort of the evaluable patients was relatively small, thus introducing a degree of uncertainness concerning particularly the specificity and sensitivity of the tested variables.    From Wordnik.com.  [Health News from Medical News Today] Reference

And odd whiles the sounds to be as of great monsters; and the earth to shake under us; and other-whiles there to be a hush and only the steam about us, and somewhere in the distance and uncertainness a low piping of some steam cranny, very strange and lonesome-sounding.    From Wordnik.com.  [The Night Land: Chapter 13] Reference

We do our best to support those seekers and are glad to do away with a common uncertainness: The right spelling is ".    From Wordnik.com.  [PlanetJava] Reference