uncertainty

The condition of being uncertain; doubt.

Something uncertain.

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

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

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

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

The quality or state of being uncertain.

That which is uncertain; something unknown.

doubt; the condition of being uncertain or without conviction.

Something uncertain or ambiguous.