senility

/səˈnɪləti/
noun
  1. The condition of being old and showing a decline in physical or mental abilities, especially memory loss and confusion.
    • Modern medicine has helped many people avoid severe senility in their later years.
    • Grandma's senility makes it hard for her to remember our names sometimes.
    • The novel's main character struggles with the onset of senility and losing his independence.
Antonyms
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