involutional

/ˌɪnvəˈluʃənəl/
adjective
  1. Relating to or characteristic of a period of decline or withdrawal, especially in later life.
    • The doctor explained that involutional processes are a normal part of getting older.
    • The patient showed involutional changes typical of aging.
    • Involutional sadness can sometimes be mistaken for clinical depression.
What does "involutional" mean? | whatsthatwordmean | whatsthatwordmean