100 entries under terrible topic. ×

8
grisly(adjective, awful, horrible, afraid)
8
horrifying(awful, grand, splendid, dreadful)
6
abysmal(adjective, awful, horrible, afraid)
6
atrocious(adjective, awful, horrible, afraid)
6
dreaded(adjective, awful, horrible, afraid)
6
frightening(adjective, awful, horrible, afraid)
6
grim(bad, pain, awful, horrible)
6
gross(adjective, awful, horrible, afraid)
6
gruesome(adjective, awful, horrible, afraid)
6
hideous(adjective, awful, horrible, afraid)
6
morbid(adjective, awful, horrible, afraid)
6
mortal(adjective, awful, horrible, afraid)
5
bad(adjective, awful, horrible, afraid)
5
harrowing(adjective, pain, awful, horrible)
5
horrific(bad, great, tough, awful)
5
redoubtable(adjective, tough, difficult, awful)
5
terrifying(adjective, awful, horrible, afraid)
4
abominable(adjective, awful, horrible, afraid)
4
desperate(adjective, awful, horrible, afraid)
4
grievous(adjective, awful, horrible, afraid)
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APASmart Define. (2016). tremendous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/tremendous/thesaurus/synonyms
ChicagoSmart Define. 2016. "tremendous thesaurus" https://smartdefine.org/tremendous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, tremendous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/tremendous/thesaurus/synonyms>.
MLASmart Define. "tremendous thesaurus" 26 February 2016. Web. 29 September 2026. <https://smartdefine.org/tremendous/thesaurus/synonyms>