adj. 25B6; adjective UNEARTHLY, spine-chilling, hair-raising, horrific, macabre, hideous, unspeakable, gruesome, grisly, ghastly, harrowing, disturbing; informal scary, creepy.
NIGHTMARISH
Meaning of NIGHTMARISH in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012