| tricky(adjective, dishonest, cunning, deceitful, crooked) |
| underhand(adjective, fair, dishonest, cunning, deceitful) |
| unethical(adjective, rude, wicked, dishonest, immoral) |
| unlawful(adjective, wicked, unreasonable, dishonest, extreme) |
| actionable(adjective, illegal) |
| amoral(adjective, wrong, wicked, dishonest, immoral) |
| arbitrary(adjective, unreasonable, extreme, improper, stiff) |
| bad(adjective, wrong, wicked, unwarranted, distressing) |
| below the belt(expression, adjective, idiom, adverb, fair) |
| crooked(adjective, wicked, dishonest, immoral, cunning) |
| cruel(adjective, hard, tough, harsh, rude) |
| dirty(wrong, rude, vulgar, immoral, shocking) |
| discriminatory(adjective, unwarranted, unbalanced, harmful, unfair) |
| felonious(adjective, illegal) |
| forbidden(adjective, unreasonable, improper, excessive, unwarranted) |
| hard(adjective, tough, harsh, rude, cruel) |
| harsh(adjective, hard, tough, cruel, coarse) |
| illicit(adjective, illegal) |
| immoderate(adjective, extreme, immoral, improper, senseless) |
| injurious(adjective, wrong, unwarranted, distressing, harmful) |