attribute:
unreality.
facts of existence:
falseness,
fantasy,
belief,
hypothesis,
idea,
theory,
imagination,
concept,
abstract.
noun:
illusion,
deceit,
mendacity,
guile,
nonbeing,
want,
error,
lack,
Inexistence,
delusion,
absence,
deception,
fiction,
falseness,
dreaminess,
nonentity,
fancy,
duplicity,
imposture,
possibility,
fabrication,
Virtuality,
potentiality,
nonexistence,
untruth,
lie,
falsity,
eventuality,
dearth,
probability,
irreality,
falsehood,
nothingness.