uncertainty

noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about uncertainty at Wordnik → Where our words come from →

1. Doubt; the condition of being uncertain or without conviction.
2. Something uncertain or ambiguous.

   Some uncertainties remain; an especially salient uncertainty is the timing of their return trip.

3. A parameter that measures the dispersion of a range of measured values.