Noun: senility si'ni-li-tee
- The state of being senile
"His senility was becoming more apparent as he struggled to remember basic facts"
- Mental infirmity as a consequence of old age; sometimes shown by foolish infatuations
"His family worried as he slipped into senility";
- dotage, second childhood
Derived forms: senilities
Type of: age, eld, geezerhood [informal], old age, oldness, years
Encyclopedia: Senility