13
sick(adjective, bad, informal, awful, disgusting)
12
vile(adjective, taste, nasty, unpleasant, awful)
11
cruel(adjective, appearance, evil, unpleasant, awful)
11
harrowing(adjective, awful, terrible, horrible, afraid)
11
unspeakable(adjective, taste, unpleasant, awful, terrible)
10
dread(adjective, awful, terrible, horrible, afraid)
10
abhorrent(adjective, taste, unpleasant, awful, terrible)
10
creepy(adjective, bad, nasty, awful, disgusting)
10
execrable(adjective, taste, unpleasant, awful, terrible)
10
hellish(adjective, taste, awful, terrible, horrible)
9
beastly(adjective, nasty, unpleasant, awful, terrible)
9
direful(adjective, awful, terrible, horrible, afraid)
9
eerie(adjective, bad, unpleasant, awful, terrible)
9
forbidding(adjective, appearance, terrible, hopeless)
9
gross(adjective, informal, awful, terrible, horrible)
9
obnoxious(adjective, taste, nasty, unpleasant, awful)
9
repellent(adjective, nasty, unpleasant, awful, dirty)
9
spine-chilling(adjective, bad, awful, terrible, disgusting)
9
ugly(adjective, awful, horrible)
9
vicious(adjective, awful, terrible, horrible, afraid)
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APASmart Define. (2016). gruesome thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/gruesome/thesaurus/synonyms
ChicagoSmart Define. 2016. "gruesome thesaurus" https://smartdefine.org/gruesome/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, gruesome thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/gruesome/thesaurus/synonyms>.
MLASmart Define. "gruesome thesaurus" 23 March 2016. Web. 24 September 2026. <https://smartdefine.org/gruesome/thesaurus/synonyms>