6
caustic(adjective, painful, sickness, ache, anguishes)
6
daunting(adjective, tough, awful, terrible, wonderful)
6
diabolical
6
disgraceful(adjective, dislike, horrible, ugly, yuck)
6
eerie(adjective, mean, nasty, unpleasant, awful)
6
enormous(adjective, awful, terrible, horrible, afraid)
6
fatal
6
hard(adjective, sickness, ache, anguishes)
6
hurting(adjective, painful, sickness, ache, anguishes)
6
infernal
6
inflamed(adjective, painful, sickness, ache, anguishes)
6
insupportable(adjective, endured)
6
lamentable(adjective, sad, unhappy, awful, terrible)
6
lurid(adjective, evil, nasty, unpleasant, awful)
6
rank(adjective, inexpedience)
6
redoubtable(adjective, tough, difficult, awful, terrible)
6
scandalous(adjective, evil, unpleasant, awful, terrible)
6
sharp(adjective, painful, sickness, ache, anguishes)
6
sinful(adjective, wicked)
6
throbbing(adjective, painful, sickness, ache, anguishes)
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APASmart Define. (2016). dreadful thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/dreadful/thesaurus/synonyms
ChicagoSmart Define. 2016. "dreadful thesaurus" https://smartdefine.org/dreadful/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, dreadful thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/dreadful/thesaurus/synonyms>.
MLASmart Define. "dreadful thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/dreadful/thesaurus/synonyms>