ghostly

Something ghostly looks or sounds like a ghost — strange and chilling. A ghostly figure appearing out of the fog can seem slightly unearthly.

Distant, ghostly music sometimes echoes through an empty subway station, and ghostly voices can often be heard in stairwells or hallways, seeming to come from nowhere. Even your neighbor's glowing TV screen can appear ghostly on a dark night. The Old English root of ghostly is gastlic, which means "spiritual, holy, or not of the flesh," and also "supernatural."

Definitions of ghostly
1

adj resembling or characteristic of a phantom

“a ghostly face at the window”
Synonyms:
apparitional, ghostlike, phantasmal, spectral, spiritual
supernatural
not existing in nature or subject to explanation according to natural laws; not physical or material

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