4
horrid
4
misfortune(noun, trouble, blow, distress, care)
4
myth(noun, imagination, ghost)
4
nightmarish(adjective, terrible, frightening, traumatic, terrifying)
4
nocturnal
4
pain(noun, trouble, bother, blow, distress)
4
plague(noun, trouble, bother, blow, distress)
4
recoil(noun, awful, terrible, fear, terror)
4
sorrow(noun, trouble, blow, distress, care)
4
terrible(adjective, frightening, traumatic, terrifying)
4
trouble(noun, blow, distress, care, torment)
3
bugaboo(noun, fear, ghost)
3
bad dream(noun, expression, idiom, vision, dream)
3
hallucination(noun, desire, fancy, spirit, experience)
3
Atlantis(noun, desire, fancy, hope, image)
3
abhorrence(noun, distress, anxiety, awful, terrible)
3
air drawn dagger(expression, idiom, imagination)
3
angst(noun, distress, anxiety, torment, horror)
3
anguish(noun, trouble, bother, blow, distress)
3
duress
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APASmart Define. (2016). nightmare thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/nightmare/thesaurus/synonyms
ChicagoSmart Define. 2016. "nightmare thesaurus" https://smartdefine.org/nightmare/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, nightmare thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/nightmare/thesaurus/synonyms>.
MLASmart Define. "nightmare thesaurus" 29 February 2016. Web. 23 September 2026. <https://smartdefine.org/nightmare/thesaurus/synonyms>