senile

/ˈsinaɪl/
adjective
  1. Relating to or showing the physical and mental decline associated with old age, especially memory loss or confusion.
    • My grandfather became increasingly senile and often forgot our names.
    • The doctor explained that some memory loss is normal, but severe senile symptoms need attention.
    • She wrote a book about caring for a senile parent.
  2. Informally, describing something that is outdated or no longer effective, often humorously.
    • That old computer is practically senile; it can't run any modern software.
    • His senile jokes about floppy disks made the younger coworkers laugh.
    • The senile policies of the company need to be updated for the digital age.
Synonyms
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