| regress(verb, decline, reduce, diminish, return) |
| lapse(verb, decline, reduce, fail, return) |
| relapse(verb, reduce, return, slip, weaken) |
| retrograde(verb, move, drop, close, decline) |
| worsen(verb, decline, reduce, fail, diminish) |
| fall back(verb, expression, phrasal verb, move, reduce) |
| recidivate(verb, fall, fail, degenerate, deteriorate) |
| revert(verb, reduce, return, slip, lapse) |
| degenerate(verb, decline, reduce, fail, return) |
| deteriorate(verb, decline, reduce, return, slip) |
| sink(verb, drop, close, decline, reduce) |
| back(verb, move, drop, close, reduce) |
| backslide(verb, reduce, slip, degenerate, deteriorate) |
| recede(verb, move, drop, close, decline) |
| decline(verb, drop, close, reduce, withdraw) |
| retreat(verb, move, drop, close, decline) |
| retrocede(verb, move, close, reduce, back) |
| return(verb, drop, close, decline, reduce) |
| ebb(verb, move, decline, reduce, diminish) |
| wane(verb, drop, close, decline, reduce) |