noun. The condition of being uncertain; doubt.

noun. Something uncertain.

noun. The estimated amount or percentage by which an estimated or calculated value may differ from the true value.

noun. The character or state of being uncertain; want of certainty.

noun. Of persons: a state of doubt; a state in which one knows not what to think or do; hesitation; irresolution.

noun. Something not certainly or exactly known; anything not determined, settled, or established; a contingency.

noun. The quality or state of being uncertain.

noun. That which is uncertain; something unknown.

noun. doubt; the condition of being uncertain or without conviction.

noun. Something uncertain or ambiguous.

noun. (mathematics) A parameter that measures the dispersion of a range of measured values.

noun. the state of being unsure of something

noun. being unsettled or in doubt or dependent on chance

"The next few hours were for me fraught with fearful anxiety and uncertainty, -- yes, _uncertainty_, -- for (to my shame, let it be recorded) I actually debated in my own mind whether or not to desert these unfortunate boys of mine, who could not themselves escape the threatened danger."

certainty  

certainty  

anger  anxiety  apprehension  depression  doubt  

Pyrrhonism  accidentality  actuarial calculation  adventitiousness  agitation