| insalubrious(adjective, harmful, unwholesome, poisonous, toxic) |
| offensive(adjective, evil, disparaging, hurtful) |
| opposed(adjective, negative, critical, contrary, unfavorable) |
| pestiferous(adjective, bad, harmful, injurious, noxious) |
| pestilential(adjective, unhealthy, harmful, injurious, poisonous) |
| prejudicial(adjective, bad, cruel, negative, unkind) |
| tragic(adjective, bad, catastrophic) |
| wasteful(adjective, economical) |
| abusive(distressing, harmful, damaging) |
| antagonistic(adjective, violent, negative, hostile, critical) |
| cataclysmal(adjective, help) |
| derogatory(adjective, disparaging, hurtful) |
| destroying(destruction, inexpedience) |
| disruptive(verb, adjective, destroying) |
| disturbing(adjective, violent, hostile, harmful, unfavorable) |
| feral(adjective, violent, vicious, fierce, unrestrained) |
| ferocious(adjective, fatal, mortal, aper, demoniac) |
| grave(adjective, acute, major, dangerous, mortal) |
| inimical(adjective, negative, antagonistic, contrary, injurious) |
| malicious(adjective, bad, evil, harsh, violent) |