Definition of weird

• Fate personified; one of the three Weird Sisters
• 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 trick of the moonlight; some weird effect of shadow"- Bram Stoker