Synonyms of nightmare

1 Syllable
fear, hell, dream, trial, fears, dreams
2 Syllables
hell-fire, dreamed, torment, phantom, fancy, ordeals, ordeal, figment, phantasm, horror, phantasms, phantoms, vision
3 Syllables
eidolon, fantasies, incubus, romancing, incubi, atlantis, succubus, calvary, illusion, succubi, fantasy
4 Syllables
ideality, tribulation
5 Syllables
hallucination