(n.) The quality of being ghostly.

Hippocratic face alarmingness appallingness awfulness cadaverousness corpselikeness creepiness deadliness deathlikeness deathliness direness disconcertingness dismayingness disquietingness dreadfulness elfdom facies Hippocratica faerie fearfulness fearsomeness frighteningness frightfulness ghastliness ghostlikeness ghostliness ghoulishness grimness grisliness gruesomeness haggardness hideousness horribleness luridness macabreness mask of death miraculousness mysteriousness mystery numinousness otherworldliness paleness pallor preternaturalism scariness spookiness startlingness superhumanity supernaturalism supernaturality supernaturalness supernature supernormalness superphysicalness supersensibleness supranaturalism supranature terribleness the occult the supernatural the supersensible transcendentalism uncanniness unearthliness unworldliness wanness weirdness witchery