deterioration

a severe and worrying decline

a decline that happens slowly over a period of time

a decline that is large enough to be important or noticeable

a decline that is not fast

a fast decline in condition

a very noticeable and significant decline in quality or condition

a decline that happens at a constant, regular rate

a decline in the economic situation

a sudden and severe decline

a decline in the quality of the natural environment

a decline that continues to get worse over time

decline in the condition of a person's body

decline in a person's cognitive abilities

the process of decline happens

indications that something is declining in quality or condition

used to specify the area or aspect that is declining (e.g., in health, in relations)

used to specify what is declining (e.g., of the economy, of standards)

to stop a decline from happening

to result in a decline

to be the reason for a decline

to make a decline end

to have a decline as a final outcome

to display signs of decline

to observe or witness a decline

to undergo a process of decline

to stop a decline that has already started