| be undecided(pause, hesitate, waver) |
| become gradually less(expression, idiom) |
| become smaller(verb, expression, decline, reduce, diminish) |
| bobble(pause, hesitate, waver) |
| break(pause, hesitate, waver) |
| cease(verb, ease, lessen, slacken) |
| clear(verb, decline, fail, diminish, weaken) |
| clip(verb, decline, reduce, diminish, lower) |
| close(verb, decline, reduce, diminish, lower) |
| crop(verb, decline, reduce, diminish, lower) |
| cut(verb, decline, reduce, diminish, lower) |
| cut back(verb, expression, decline, reduce, diminish) |
| de-escalate(verb, decline, reduce, diminish, lower) |
| degrade(verb, decline, reduce, diminish, lower) |
| deliquesce(verb, decline, fail, diminish, weaken) |
| descend |
| die on vine(verb, expression, idiom, decline, fail) |
| die out(verb, expression, decline, fail, ease) |
| dilute(verb, decline, reduce, diminish, lower) |
| dim(verb, decline, fail, diminish, weaken) |