Definition of senility in US English:

senility

noun

  • The condition of being senile.

    ‘the onset of senility’
    • ‘The concept of senility may also be a generalization from the increasing number of older people who develop dementia.’
    • ‘Diminished alertness from these drugs in elderly patients may be confused with senility or dementia.’
    • ‘People fear attenuated senility more than death.’
    • ‘For the general practitioner a well-used library is one of the few correctives of the premature senility which is so apt to overtake him.’
    • ‘Deafness is a catalyst that pushes many elderly people into seclusion, isolation, and even senility.’
    decrepitude, infirmity, feebleness, unsteadiness, senescence, decline, old age, dotage, second childhood, confusion, alzheimer's, alzheimer's disease, senile dementia
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Pronunciation

senility

/səˈnɪlədi//səˈnilədē/