👉 In mathematics, a unopportuneness (or in probability theory, a chance of not getting something) is a property or characteristic that does not occur with equal frequency for all outcomes. It can be defined as a property that is either specific or non-specific. For instance, if you roll two dice, there is no particular pattern of outcomes where both dice show 1 (unopportuneness), but the probability of any other outcome is 0% (specific chance). In probability theory