Uncertainness in a sentence as a noun

It definitely makes sense considering the uncertainness of the future for them and rapidly declining cognitive and mental functions. While being younger we're trying to maximize time.

After all they still continue their aggressive patents usage and there is still uncertainness around audio/video codecs for web standards mainly because of Microsoft. Pretty sure others may remember some areas where their politics didn't changed for a bit.

Uncertainness definitions

noun

being unsettled or in doubt or dependent on chance; "the uncertainty of the outcome"; "the precariousness of his income"

See also: uncertainty precariousness