"unearthly" in the adjective sense
1. spiritual, unearthly
concerned with or affecting the spirit or soul
"a spiritual approach to life"
"spiritual fulfillment"
"spiritual values"
"unearthly love"
2. eldritch, weird, uncanny, unearthly
suggesting the operation of supernatural influences
"an eldritch screech"
"the three weird sisters"
"stumps...had uncanny shapes as of monstrous creatures"- John Galsworthy
"an unearthly light"
"he could hear the unearthly scream of some curlew piercing the din"- Henry Kingsley
Source: WordNet® (An amazing lexical database of English)
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