nightmare Synonyms

incubus succubus night terrors succuba purgatory plague phantasm pain ordeal murder monster misery mare illusion suffering terror torment nightmares dreams REM sleep night hag nightfright night terror Atlantis phobia vision trouble tribulation trial torture horror horrification hobgoblin chimera calvary burden bugbear bugaboo bogie bogey bete noire bane atrocity anxiety alp agony curse daydream distress hell