noun
A direct loanword used in philosophical, academic, or formal contexts to refer to the state of being actual or real, as opposed to potential or virtual.
哲学の講義で、可能性とアクチュアリティーの違いについて議論した。
In the philosophy lecture, we discussed the difference between potentiality and actuality.
現実 is the common native word for 'reality' or 'actuality' in everyday Japanese. アクチュアリティー is a rarer, more technical loanword used mainly in academic or philosophical contexts.
Borrowed from English 'actuality'.