un·re·al·i·ty /ˌʌnriˈæləti/
(a.)非現實,不存在之物
Un·re·al·i·ty n. The quality or state of being unreal; want of reality.
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unreality
n 1: the quality possessed by something that is unreal [ant: reality]
2: the state of being insubstantial or imaginary; not existing
objectively or in fact [syn: irreality] [ant: reality]