1. strange and mysterious in a way that seems not of this world
2. extremely unreasonable or inconvenient
Usage: informal

Examples

• The fog created an unearthly atmosphere in the cemetery.
• She heard an unearthly howling sound coming from the forest.
• The northern lights cast an unearthly glow across the sky.
• His pale complexion gave him an unearthly appearance.
• They called at the unearthly hour of 3 AM.
• The noise from construction starts at an unearthly time each morning.
• The abandoned house had an unearthly silence about it.