characteristics ► adjective 1 almost undetectable as fake. Creating a new alternative form of reality: The transformation to an alter real object was successful. ■ almost impossible to perceive or detect as fake, as good as real 2 altered forms of reality are implemented and become stabile in the system: It was an alterreal situation. 3 Surface (for a process or interface of objects) The interface was programmed to respond to all future needs of the customers; too good to be true: The alterreality of the object helped to envision something different. 4 Physics At the last stage of transiting to become reality. Inserted, applied and adopted by a system. – Derivatives alterreality noun [mass noun] entering a age of alterreality. – Derivatives late Middle English: from Old French, from medieval Latin alteration, alternative, form of reality, Latin alterrealitare