unreal

Not real or substantial; illusory.

So remarkable as to elicit disbelief; fantastic.

Surreal.

Not real; not substantial; having appearance only; illusive; ideal.

Unpractical; visionary.

Not real; unsubstantial; fanciful; ideal.

fake; not real

larger or more fantastic than typical of real life.

contrived by art rather than nature

lacking in reality or substance or genuineness; not corresponding to acknowledged facts or criteria