improbability
unlikelihood / rarity / implausibility
Noun
pl: improbabilities
This term conveys a sense of skepticism or mathematical rarity. It is often used in technical or formal contexts, such as statistics or logic, to describe a low probability of occurrence. While it can describe a general feeling of doubt, it typically refers to an objective lack of likelihood. As a noun, it can function as an abstract quality (the state of being improbable) or as a countable event (a specific unlikely occurrence). When referring to the general quality, it is treated as uncountable, whereas specific instances are countable.