| fade(verb, break, decline, hurt, ruin) |
| lessen(verb, decline, reduce, fail, lower) |
| molder(verb, decline, weaken, lessen, degenerate) |
| putrefy(verb, decline, weaken, lessen, degenerate) |
| sink(verb, decline, reduce, ruin, destroy) |
| spoil(verb, break, dull, decline, hurt) |
| wane(verb, decline, blow, weaken, lessen) |
| waste away(expression, decline, weaken, lessen, exhaust) |
| wear out(verb, expression, phrasal verb, decline, blow) |
| atrophy(verb, decline, blow, weaken, lessen) |
| be impaired(verb, decline, weaken, lessen, degenerate) |
| become contaminated(expression, decline, weaken, lessen, degenerate) |
| burn(verb, break, hurt, reduce, ruin) |
| collapse(verb, decline, reduce, slip, weaken) |
| curdle(verb, decline, weaken, lessen, degenerate) |
| cut(verb, reduce, consume, scratch, carve) |
| debilitate(verb, decline, hurt, ruin, destroy) |
| defile(verb, break, dull, decline, hurt) |
| deplete(verb, blow, waste, consume, lose) |
| depreciate(verb, decline, fail, lower, weaken) |