| senescence(noun, decline, ruin, collapse, failing) |
| spoilage(noun, decline, collapse, deterioration, decay) |
| spoilation(noun, decline, collapse, deterioration, decay) |
| waste |
| waste away(verb, expression, phrasal verb, decline, degenerate) |
| wasted away(verb, expression, decline, fade, dissolve) |
| wearing away(noun, verb, expression, adjective, decline) |
| withering(noun, decline, ruin, collapse, deterioration) |
| abrading |
| abrasion |
| agglutinate(dissolve, melt, interfuse) |
| aging |
| ailing |
| atrophied(verb, molder, curdled, putresce, dry-rot) |
| be disregarded(verb, suffer, faint, listless, fag) |
| be impaired(verb, degenerate, deteriorate, crumble, decompose) |
| be neglected(verb, suffer, faint, listless, fag) |
| be worse for wear(verb, decline, reoccur, unsay, unsaying) |
| become contaminated(verb, expression, degenerate, deteriorate, crumble) |
| become liquid(expression, dissolve, melt, interfuse) |