lacking in reality or substance or genuineness; not corresponding to acknowledged facts or criteria
"ghosts and other unreal entities"
"unreal propaganda serving as news"
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"
contrived by art rather than nature
"artificial flowers"
"artificial flavoring"
"an artificial diamond"
"artificial fibers"
"artificial sweeteners"
lacking material form or substance; unreal
"as insubstantial as a dream"
"an insubstantial mirage on the horizon"
fake; not real
"The magician made the rabbit look completely unreal by making it appear out of thin air."
This word comes from adding the prefix un- to real. It originally meant not real or existing only in thought.