3
frightful(adjective, endured)
3
ghastly(adjective, endured)
3
grewsome(adjective, endured)
3
grisly(adjective, endured)
3
gruesome(adjective, endured)
3
harrowing(adjective, endured)
3
harsh(adjective, endured)
3
heavy
3
heinous(adjective, endured)
3
hideous(adjective, endured)
3
horrendous(adjective, endured)
3
horrible(adjective, endured)
3
horrid(adjective, endured)
3
horrifying(adjective, endured)
3
intense(adjective, endured)
3
loathsome(adjective, endured)
3
lurid(adjective, endured)
3
macabre(adjective, endured)
3
monstrous(adjective, endured)
3
nasty(adjective, endured)
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APASmart Define. (2015). insupportable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/insupportable/thesaurus/synonyms
ChicagoSmart Define. 2015. "insupportable thesaurus" https://smartdefine.org/insupportable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, insupportable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/insupportable/thesaurus/synonyms>.
MLASmart Define. "insupportable thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/insupportable/thesaurus/synonyms>