63 entries under terrible topic. ×

6
severe(adjective, appearance, mean, harsh, awful)
4
cutthroat(adjective, mean, strong, hard, severe)
4
devilish(adjective, animal, mean, evil, harsh)
4
unrelenting(adjective, animal, appearance, mean, hard)
3
animal(noun, adjective, adverb, mean, strong)
3
implacable(adjective, animal, appearance, mean, hard)
3
malevolent(adjective, mean, strong, severe, evil)
3
relentless(adjective, animal, appearance, mean, strong)
2
grisly(adjective, appearance, hopeless)
2
gruesome(adjective, appearance, hopeless)
2
horrible(adjective, strong, violent, shocking)
2
inexorable(adjective, appearance, mean, hard, tough)
2
malign(adjective, animal, mean, strong, severe)
2
nefarious(adjective, evil, cruel, wicked)
2
offensive(adjective, severe, awful, wicked)
2
unpleasant(adjective, mean, severe, awful)
1
austere(adjective, appearance, mean, hard, simple)
1
forbidding(adjective, appearance, hard, tough, harsh)
1
frightful(adjective, appearance, violent, wild)
1
ghastly(adjective, appearance, hopeless)
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APASmart Define. (2016). barbarous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/barbarous/thesaurus/synonyms
ChicagoSmart Define. 2016. "barbarous thesaurus" https://smartdefine.org/barbarous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, barbarous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/barbarous/thesaurus/synonyms>.
MLASmart Define. "barbarous thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/barbarous/thesaurus/synonyms>