55 entries under terrible topic. ×

41
ominous(adjective, person, appearance, mean, bad)
23
foreboding(adjective, person, appearance, mean, bad)
19
baleful(adjective, nasty, sorrow, awful)
17
grim(adjective, person, appearance, sad, sorrow)
11
forbidding(adjective, person, appearance, rough, nasty)
8
atrocious(adjective, evil, awful, dreadful)
8
cruel(adjective, person, appearance, hopeless)
8
stern(adjective, person, dark, negative)
6
bleak(adjective, appearance, obscure, sad, dark)
6
hideous(adjective, appearance, evil, awful, violent)
5
fearful(adjective, awful, dreadful, weird)
5
horrible(adjective, obscure, nasty, dark, unpleasant)
5
horrid(appearance, shocking, explicit, hopeless)
5
monstrous(adjective, evil, awful, dreadful)
4
appalling(awful, dreadful)
4
dreadful(adjective, nasty, unpleasant, awful)
4
hopeless(adjective, appearance, obscure, sad, dark)
4
horrifying(adjective, awful, violent, shocking)
4
shocking(adjective, appearance, offensive, unpleasant, awful)
3
awful(nasty, dreadful, disturbing, scary)
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APASmart Define. (2016). sinister thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sinister/thesaurus/synonyms
ChicagoSmart Define. 2016. "sinister thesaurus" https://smartdefine.org/sinister/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, sinister thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sinister/thesaurus/synonyms>.
MLASmart Define. "sinister thesaurus" 3 April 2016. Web. 25 September 2026. <https://smartdefine.org/sinister/thesaurus/synonyms>