"weirdest" in the adjective sense
1. 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
strikingly odd or unusual some weird effect of shadow"- Bram Stoker
"some trick of the moonlight
Source: WordNet® (An amazing lexical database of English)
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