Virtual concept
Other definitions were listed in scientific studies and researches of etymological origin, and find for virtual: it´s what exists as faculty but without exercise or effect/result, which does not exist as a reality, but as power or faculty, and still an important definition: what is likely to happen, potential and possible.
In the settings of Anglo-Saxon origin languages, an overview of definitions are possible similar to the previous settings: is what exists as faculty but without assignment or current effect/result, which does not exist as a reality but as power/potency, it is possible to perform as potential and possible.
You can even incorporate to virtual, present/current ontological concepts as: the one that is equivalent to the other, being able to play the role of these ones, in virtue or activity, in the meaning used in Portuguese and in the Anglo-Saxon root such as : something that exists in essence or effect/result, although not formally recognized and accepted as such, and although there are new ideas built up, with new meanings, it cannot escape its etymological origin, virtus and virtual, because it would be a confusion.
There were already some studies of these categories. We will get to know some significant contributions of contemporary scholars.
Among these authors I highlight three main references in my view: Gilles Deleuze (Difference and Repetition), Anthony Giddens (The consequences of modernity) and Pierre Levy (What is virtual).
Thus virtual is not equivalent to unreal, because it is possible in the sense of “being” in potency.