senility — English Dictionary

Noun

1. The bodily and mental deterioration associated with old age: Synonym of senescence.

   Usage

   • Uncountable

   Synonyms

   second childhood

   Antonyms

   juvenescencejuvenility

   Examples

   Near-synonym: second childhood

2. The losing of memory and reason due to senescence.

   Usage

   • Uncountable

   Antonyms

   juvenility

   Examples

   He was entering his years of senility and not liking it a bit.

3. An elderly, senile person.

   Usage

   • Archaic
   • Countable

   Antonyms

   juvenile

   Examples

   There was no need for George Playford to talk as if they were doddering senilities.

Noun

1. mental infirmity as a consequence of old age; sometimes shown by foolish infatuations

   Synonyms

   dotagesecond childhood

   Broader terms

   old ageyearsageeldgeezerhood

2. the state of being senile

   Broader terms

   oldness