Source : Webster's Revised Unabridged Dictionary (1913)

Uncanny \Un*can"ny\, a.
   Not canny; unsafe; strange; weird; ghostly. --Sir W. Scott.
   -- {Un*can"ni*ness}, n. --G. Eliot.

Source : WordNet®

uncanny
     adj 1: 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 [syn: {eldritch}, {weird},
             {unearthly}]
     2: beyond what is natural; "his uncanny sense of direction";
        (`unco' is chiefly Scottish) [syn: {unco}]