| arcane(adjective, evil, mysterious, threatening, nefarious) |
| atrocious(adjective, evil, mysterious, threatening, nefarious) |
| austere(appearance, terrible, hopeless) |
| awful |
| bad(adjective, evil, mysterious, threatening, nefarious) |
| barbarous(appearance, terrible, hopeless) |
| base(adjective, unpleasant, horrible, disagreeable, dreadful) |
| bellicose(adjective, rough, nasty, dark, unpleasant) |
| bleak(appearance, terrible, hopeless) |
| cabalistic(adjective, evil, mysterious, threatening, nefarious) |
| calamitous |
| cataclysmic |
| catastrophic |
| complicated(adjective, evil, mysterious, threatening, nefarious) |
| concealed(adjective, evil, mysterious, threatening, nefarious) |
| corrupt(adjective, evil, mysterious, threatening, nefarious) |
| crabbed(adjective, rough, nasty, dark, unpleasant) |
| cryptic(adjective, evil, mysterious, threatening, nefarious) |
| damnable(adjective, evil, mysterious, threatening, nefarious) |
| deep(adjective, evil, mysterious, threatening, nefarious) |