| abatement(noun, drop, decrease, retreat, wane) |
| backflow(noun, drop, decrease, retreat, wane) |
| decay(noun, drop, decrease, retreat, wane) |
| decrease(noun, drop, retreat, wane, ebb) |
| degeneration(noun, drop, decrease, retreat, wane) |
| depreciation(noun, drop, decrease, retreat, wane) |
| deterioration(noun, drop, decrease, retreat, wane) |
| diminution(noun, drop, decrease, retreat, wane) |
| drop(noun, decrease, retreat, wane) |
| dwindling(noun, drop, decrease, retreat, wane) |
| ebb(noun, drop, decline, decrease, retreat) |
| fading away(noun, expression, drop, decrease, retreat) |
| flagging(noun, drop, decrease, retreat, wane) |
| going out(noun, expression, drop, decrease, retreat) |
| lessening(noun, drop, decrease, retreat, wane) |
| low tide(noun, expression, drop, decrease, retreat) |
| low water(noun, expression, drop, decrease, retreat) |
| outward flow(noun, expression, drop, decrease, retreat) |
| petering out(noun, expression, drop, decrease, retreat) |
| recession(noun, drop, decrease, retreat, wane) |