unearthly

adjective

1. seeming not to belong to this earth or world: unearthly beauty.
2. supernatural; ghostly; unnaturally strange; weird: an unearthly scream.
3. out of the ordinary; unreasonable or absurd: to get up at an unearthly hour.

adjective

1. ghostly; eerie; weirdunearthly screams
2. heavenly; sublimeunearthly music
3. ridiculous or unreasonable (esp in the phrase unearthly hour)

adj.1610s, “heavenly, sublime,” from un- (1) “not” + earthly. Sense of “ghostly, weird” first recorded 1802. Related: Unearthliness.