| equivocal(adjective, uncertain, doubtful) |
| evil(adjective, vicious, vile, wicked, immoral) |
| heinous |
| improper(adjective, wrong, rude, inappropriate, unfit) |
| indecorous(adjective, rude, inappropriate, indecent, unbecoming) |
| inferior(adjective, careless, sloppy, shameful, shabby) |
| iniquitous |
| licentious(adjective, disgraceful, dishonorable, lowly, infamous) |
| odious(adjective, evil, wicked, immoral, untrue) |
| sinful(adjective, evil, wicked, immoral, despicable) |
| unbecoming(adjective, rude, inappropriate, indecent, unfit) |
| unethical(adjective, bad, wrong, dishonest, immoral) |
| unsavory(adjective, immoral, sordid, seedy) |
| abominable(evil, wicked, immoral, dishonorable, despicable) |
| awful(adjective, vile, wicked, wretched, dreadful) |
| contemptuous |
| crooked(adjective, bad, wrong, low, false) |
| devious(dishonest, shameful, disgraceful, crooked, underhand) |
| disorderly(adjective, dishonorable, lowly, vice, infamous) |
| fishy(adjective, wrong, uncertain, dishonest, vague) |