| fail(decline, weaken, lessen, degenerate, deteriorate) |
| frustrate(upset, trouble, obscure, confuse, baffle) |
| get worse(expression, decline, weaken, lessen, degenerate) |
| go to seed(expression, idiom, decline, weaken, lessen) |
| go to the dogs(expression, idiom, decline, weaken, lessen) |
| hit rock bottom(expression, idiom, decline, weaken, lessen) |
| hit the skids(expression, idiom, decline, weaken, lessen) |
| hurt(verb, upset, annoy, distress, suppress) |
| inhibit |
| insult |
| irk(verb, upset, bother, disturb, annoy) |
| irritate(verb, upset, bother, annoy, provoke) |
| lessen(verb, decline, weaken, degenerate, deteriorate) |
| libel |
| minimize(verb, mock, disparage, ridicule) |
| molest(verb, pain) |
| overcome(verb, upset, crush, suppress, confuse) |
| pain(upset, annoy, distress, shock, irritate) |
| pejorate(decline, weaken, lessen, degenerate, deteriorate) |
| perish(decline, weaken, lessen, degenerate, deteriorate) |