Definition of unreal adjective from the Oxford Advanced American Dictionary

     

    unreal

     adjective
    adjective
    NAmE//ʌnˈril//
     
    , NAmE//ʌnˈriəl//
     
     
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  1. 1so strange that it is more like a dream than reality The party began to take on an unreal, almost nightmarish quality.
  2. 2not related to reality synonym unrealistic Many people have unreal expectations of what marriage will be like.
  3. 3(informal) used to say that you like something very much or that something surprises you “That's unreal!” she laughed.
NAmE//ˌʌnriˈælət̮i//
 
noun [uncountable] She had a strange sense of unreality. An air of unreality hung over the whole ceremony.
See the Oxford Advanced Learner's Dictionary entry: unreal