Source : WordNet®

eerie
     adj 1: suggestive of the supernatural; mysterious; "an eerie
            feeling of deja vu" [syn: {eery}, {spooky}]
     2: so strange as to inspire a feeling of fear; "an
        uncomfortable and eerie stillness in the woods"; "an eerie
        midnight howl" [syn: {eery}]
     [also: {eeriest}, {eerier}]

eerier
     See {eerie}