nightmare Synonyms

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