"unreal" in the adjective sense
1. unreal
lacking in reality or substance or genuineness not corresponding to acknowledged facts or criteria
"ghosts and other unreal entities"
"unreal propaganda serving as news"
2. unreal
not actually such being or seeming fanciful or imaginary
"this conversation is getting more and more unreal"
"the fantastically unreal world of government bureaucracy"
"the unreal world of advertising art"
3. artificial, unreal
contrived by art rather than nature
"artificial flowers"
"artificial flavoring"
"an artificial diamond"
"artificial fibers"
"artificial sweeteners"
4. insubstantial, unsubstantial, unreal
lacking material form or substance unreal
"as insubstantial as a dream"
"an insubstantial mirage on the horizon"
Source: WordNet® (An amazing lexical database of English)
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