3
painful(adjective, endured)
3
piercing(adjective, endured)
3
rotten(adjective, endured)
3
shocking(adjective, endured)
3
sickening(adjective, endured)
3
tormenting(adjective, endured)
3
torturous(adjective, endured)
3
unacceptable(adjective, endured)
3
unbearable(adjective, endured)
3
unendurable(adjective, endured)
3
unfortunate(adjective, endured)
3
unspeakable(adjective, endured)
3
unsupportable(adjective, endured)
3
vicious(adjective, endured)
3
vile(adjective, endured)
3
wretched(adjective, endured)
2
chilling(adjective, frightening)
2
dreamy(adjective, gentle, marvelous, vague, romantic)
2
eerie(adjective, frightening)
2
ghostly(adjective, ghostly)
13 years ago|3.4k views|share |citing 
APASmart Define. (2013). nightmarish thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/nightmarish/thesaurus/synonyms
ChicagoSmart Define. 2013. "nightmarish thesaurus" https://smartdefine.org/nightmarish/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2013, nightmarish thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/nightmarish/thesaurus/synonyms>.
MLASmart Define. "nightmarish thesaurus" 28 June 2013. Web. 28 September 2026. <https://smartdefine.org/nightmarish/thesaurus/synonyms>