| ill(adjective, baneful) |
| inauspicious |
| inedible(adjective, unpalatable) |
| infected(adjective, unhealthy) |
| menacing(adjective, threatening, dangerous, injurious, damaging) |
| morbific(inexpedience, insalubrity) |
| odious(adjective, bad, taste, offensive, awful) |
| offensive(adjective, bad, evil, foul, disgusting) |
| ominous(cruel, unkind, upsetting, threatening, menacing) |
| perilous(adjective, harmful, dangerous, injurious, detrimental) |
| polluted(adjective, bad, offensive, dirty, foul) |
| prejudicial(bad, cruel, unkind, distressing, upsetting) |
| rank(adjective, bad, offensive, foul, disgusting) |
| repugnant(adjective, bad, taste, offensive, awful) |
| revolting(adjective, bad, taste, offensive, awful) |
| risky(adjective, harmful, dangerous, injurious, damaging) |
| scathing |
| serious(adjective, bad, offensive, foul, revolting) |
| spoiled(dirty, harmful, polluted, soiled, toxic) |
| stinking(adjective, bad, offensive, foul, disgusting) |