Unspoken.
Nearly, almost. (A relatively recent development in meaning)
Having the power of acting or of invisible efficacy without the agency of the material or measurable part; potential.
Pertaining to particles in temporary existence due to the Heisenberg uncertainty principle.
Simulated in a computer or online.
In effect or essence, if not in fact or reality; imitated, simulated.
Operating by computer or in cyberspace; not physically present.
Capable of being overridden with a different implementation in a subclass.
A computer simulation of a real-world sport such as horse racing.
A virtual member function of a class.