far-out
far-out {adj.}
1. Very far away; distant.
Scientists are planning rocket trips to the moon and far-out planets.
2. {informal}
Very different from others; queer; odd, unusual.
He enjoyed being with beatniks and other far-out people.
Susan did not like some of the paintings at the art show because they were too far-out for her.
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Source: A Dictionary of American Idioms